| Observation Date |
Observation Time |
Precipitation |
Snowfall |
Snowfall SWE |
Snow Depth |
Snow SWE |
Notes |
| 11/27/2010 |
11:59 PM |
M |
T |
M |
M |
M |
Brief Lake Effect flurries overnight which melted by about 1000 |
| 12/1/2010 |
11:59 PM |
M |
1.8 |
M |
M |
M |
|
| 12/2/2010 |
11:59 PM |
M |
T |
M |
M |
M |
Intermittent flurries which were so tiny and infrequent that they were hard to see occurred between about 12:15 pm and midnight. |
| 12/3/2010 |
11:59 PM |
M |
0.6 |
M |
M |
M |
Snow flurries began faintly at 4:42 pm and within a few minutes had become a moderate snowfall, lasting less than 10 minutes. Flurries strengthened and weakened until about 9 pm, including a brief period of hail. |
| 12/4/2010 |
11:59 PM |
M |
T |
M |
M |
M |
Overcast; calm; fine snowfall of < 1/16"
We basically had 24 hours of lake-effect snow today. With occasionally brief exceptions, the snowfall was very fine, but easily visible, unlike the two preceding days when the exceedingly fine and intermittent snow was difficult to see at times. |
| 12/5/2010 |
11:59 PM |
M |
4.9 |
M |
M |
M |
Clear; slightly windy; overcast except for at least one small, "thin" area overhead allowing me to see Capella |
| 12/6/2010 |
11:59 PM |
M |
6.1 |
M |
10.5 |
M |
Overcast; calm; light flurries; this has been another 24-hour event. |
| 12/7/2010 |
11:59 PM |
M |
3.0 |
M |
13.5 |
M |
Overcast, calm, and a fine flurry; this has been nearly another 24-hour event. Yesterday's measurement of 10.5" of snow/ice on the ground was my first in the eight years I have been reporting Lake Effect snowfall, and I made only a single measurement, which may have been high based on the three measurements I made this evening and then averaged. |
| 12/8/2010 |
11:59 PM |
M |
3.8 |
M |
11.0 |
M |
Overcast, calm + snowing almost moderately; occasional periods of sun between bands of Lake Effect snow during the late morning and early afternoon |
| 12/9/2010 |
11:59 PM |
M |
3.0 |
M |
8.5 |
M |
Overcast, calm + clear; above-freezing temperatures melted a significant amount of snow on my snow boards (I failed to measure earlier in the day before temperatures rose), and therefore I adjusted all of my measurements by adding 2.2 inches, the difference between yesterday's ground measurement and today's
|
| 12/10/2010 |
11:59 PM |
M |
T |
M |
6.0 |
M |
Overcast, calm + clear; light to moderate flurries for a couple of hours beginning at about 1315, but above freezing temperatures during the evening melted the trace amount |
| 12/11/2010 |
11:59 PM |
M |
0.0 |
M |
4.0 |
M |
Overcast, windy + clear |
| 12/12/2010 |
11:49 PM |
M |
0.0 |
M |
1.5 |
M |
Overcast, calm + clear; another day of above-freezing temperatures |
| 12/13/2010 |
11:59 PM |
M |
2.2 |
M |
3.0 |
M |
Overcast, windy + snowing moderately; Lake Effect snow began at about 0830, strengthened to a moderate snow shower by about 1030, and continued most of the day with variable intensity |
| 12/14/2010 |
11:59 PM |
M |
3.5 |
M |
5.0 |
M |
Mostly clear, calm + no precipitation; Lake Effect snow most of the day until early evening; I lingered for about 5 minutes to look for Geminids, but saw none. A setting, gibbous moon low in the western sky shone brightly, accompanied by Lake Effect bands to the southwest and east of me that were brilliantly illuminated by Rochester or the Towne Center at Webster, respectively; the band across the northern horizon loomed ominously dark gray against the black sky. I finished my time in the cold and snow by using my flashlight to follow the tracks of a deer past one of my stations before it crossed my driveway and walked alongside my car, until finally it crossed the street into a neighbor's yard, hunting for white acorns (Shirley and I had raked most of our acorns when we removed our leaves last month). |
| 12/15/2010 |
11:59 PM |
M |
3.0 |
M |
6.5 |
M |
Mostly overcast, very slight wind + no precipitation; snow flurries began within minutes of finishing. I'm not certain if my measurements are correct, for I was away most of the day, and there may have been some melting due to possible sunshine at midday and during early afternoon. I observed considerable sunshine while traveling in other parts of Monroe County at those times, but do not know if similar conditions existed at home. At 0851 I made a measurement of 2.75" at one of my four stations as a reference, and during my official measurements nearly 16 hours later the depth of new snow at that same station was only 3.25". |
| 12/16/2010 |
11:59 PM |
M |
0.0 |
M |
M |
M |
A fine snow began sometime after midnight. |
| 12/17/2010 |
11:59 PM |
M |
1.7 |
M |
5.5 |
M |
(1) @ 1212: Overcast, slightly windy + a stray snowflake; this is a precautionary measurement due to warming temperatures (2) @ 2359: Overcast, nearly calm, with an extremely slight, fine flurry (almost undetectable; radar confirms that I'm on the eastern fringe of the Lake Effect band) (3) Total depth of snow and ice decreased by approximately one inch during the day due to melting. |
| 12/18/2010 |
11:59 PM |
M |
0.0 |
M |
4.5 |
M |
Overcast, calm + no precipitation; small, slightly brighter patch of cloud in front of a gibbous moon |
| 12/19/2010 |
11:59 AM |
M |
T |
M |
M |
M |
A few minutes of very fine snow at about 0900 and again at about 2030 |
| 12/20/2010 |
11:59 PM |
M |
0.4 |
M |
4.0 |
M |
@ 1447: Nearly overcast, slightly windy + no precipitation; this is a precautionary measurement due to warming temperatures. At midnight all values were less due to melting during the afternoon and early evening. |
| 12/21/2010 |
11:59 PM |
M |
0.0 |
M |
M |
M |
|
| 12/22/2010 |
11:59 PM |
M |
0.1 |
M |
3.5 |
M |
Overcast, windy + no precipitation; starting @ ~ 1600: very fine, freezing rain mixed with an occasional snowflake + lasted about 2 hours |
| 12/23/2010 |
11:59 PM |
M |
T |
M |
2.5 |
M |
Overcast, calm + very fine snow; brief flurry of fine snow earlier in the day |
| 12/24/2010 |
11:59 PM |
M |
0.3 |
M |
3.0 |
M |
Overcast, calm + no precipitation; precautionary measurement at 1st station @ 1150 was 0.25",and the measurement @ 2348 was 0.125" after slight melting during the day |
| 12/25/2010 |
11:59 PM |
M |
0.1 |
M |
3.0 |
M |
Overcast, calm + no precipitation; I think there was some minor melting during the day of the snow which fell overnight; a second, light dusting occurred late in the afternoon; this will be my last report until the 31st. |
| 12/31/2010 |
11:59 PM |
M |
0.0 |
M |
0.0 |
M |
Overcast, slightly windy + no precipitation (see Observation Notes for 010111) |
| 1/1/2011 |
11:59 PM |
M |
0.0 |
M |
0.0 |
M |
Overcast, windy + no precipitation; temperatures in the 40s and 50s, plus some rain, during the past several days have melted practically all traces of snow |
| 1/2/2011 |
11:59 PM |
M |
0.3 |
M |
0.0 |
M |
Overcast, slightly windy + very light, fine flurry; practically all of the approximately 1/4" of snow we received today has melted before my measurements |
| 1/3/2011 |
11:59 PM |
M |
0.0 |
M |
0.0 |
M |
Overcast, calm + no precipitation |
| 1/4/2011 |
11:59 PM |
M |
0.6 |
M |
1.0 |
M |
Overcast, calm + very fine, scattered snow; a trace after midnight (did not completely cover the deck); c1430: a light flurry with some peeks of filtered sun for a couple of hours |
| 1/5/2011 |
11:59 PM |
M |
1.9 |
M |
2.5 |
M |
Overcast, slightly windy + no precipitation; precautionary measurements were made at 1513, and slight melting was observed at each station during the final observation |
| 1/6/2011 |
11:59 PM |
M |
0.2 |
M |
2.0 |
M |
Overcast, calm + extremely fine snow |
| 1/7/2011 |
11:59 PM |
M |
0.2 |
M |
1.5 |
M |
Overcast, calm + no precipitation; ~0.2" fell overnight, but melted during the day |
| 1/8/2011 |
11:59 PM |
M |
2.2 |
M |
3.5 |
M |
Overcast, slightly windy + fine, occasional flurry; trace of snow overnight measured @ 0904 + melted during the day; squall began @ ~1430, snowed heavily for ~15 minutes, + ended in ~2 hours |
| 1/9/2011 |
11:59 PM |
M |
1.5 |
M |
4.0 |
M |
Overcast, slightly windy + no precipitation; a precautionary measurement was made at 1152 and considerable melting was observed at each station during the final observation |
| 1/10/2011 |
11:59 PM |
M |
0.0 |
M |
3.0 |
M |
Overcast, calm + no precipitation |
| 1/11/2011 |
11:59 PM |
M |
1.1 |
M |
4.0 |
M |
Overcast, calm and fine, moderate snow |
| 1/12/2011 |
11:59 PM |
M |
5.1 |
M |
9.0 |
M |
Overcast, calm + no precipitation |
| 1/13/2011 |
11:59 PM |
M |
1.2 |
M |
8.0 |
M |
Overcast, almost calm + fine flurry; despite temperatures in the teens, plus a windchill, I think some of last night's snowfall melted during the day |
| 1/14/2011 |
11:59 PM |
M |
0.8 |
M |
7.0 |
M |
Mostly clear, calm + no precipitation; precautionary measurements were made at 0936 (thin cloud cover, with some bluish openings in the northwest + very fine, infrequent snow), and complete melting was observed at each station during the final observation |
| 1/15/2011 |
11:59 PM |
M |
1.1 |
M |
7.0 |
M |
Precautionary measurements were made at 1322-1325 due to partly cloudy sky and potential for partial melting. Some melting did occur, and those values are being reported. |
| 1/16/2011 |
11:59 PM |
M |
2.6 |
M |
8.0 |
M |
Due to the possibility of partial melting, I took a precautionary measurement at 1203 (partly cloudy, slightly windy + no precipitation). Some melting did occur during the partially sunny mid-afternoon. Overcast (with a few thin spots), slightly windy + very fine, ocasional snowflakes during the final measurements. Therefore, new snowfall is the sum of my two averages (I checked for the possibility of rounding errors). |
| 1/17/2011 |
11:59 PM |
M |
T |
M |
6.5 |
M |
thin overcast (the moon is visible), moderately windy + no precipitation; trace amount after midnight |
| 1/18/2011 |
11:59 PM |
M |
T |
M |
3.5 |
M |
Overcast, calm and very light rain; a trace of very fine snow from overnight began to melt at about 1015 |
| 1/19/2011 |
11:59 PM |
M |
0.9 |
M |
4.0 |
M |
Overcast, windy and fine flurry |
| 1/20/2011 |
11:59 PM |
M |
0.7 |
M |
4.5 |
M |
Overcast, calm and fine, wet snow |
| 1/21/2011 |
11:59 PM |
M |
1.2 |
M |
6.0 |
M |
Partly cloudy, slightly windy and occasional, fine snow |
| 1/22/2011 |
11:59 PM |
M |
0.3 |
M |
5.5 |
M |
Overcast, calm and very fine, light snow |
| 1/23/2011 |
11:59 PM |
M |
2.4 |
M |
7.0 |
M |
Mostly cloudy with a gibbous moon peeking through high haze, extremely slightly windy and very fine, light snow |
| 1/24/2011 |
11:59 PM |
M |
0.3 |
M |
6.5 |
M |
Overcast, calm and extremely fine, light snow |
| 1/25/2011 |
11:59 PM |
M |
0.1 |
M |
6.5 |
M |
Overcast, nearly calm and no precipitation |
| 1/26/2011 |
11:59 PM |
M |
0.1 |
M |
6.0 |
M |
Overcast, calm and very fine, light snow |
| 1/27/2011 |
11:59 PM |
M |
0.8 |
M |
6.5 |
M |
Overcast, slightly windy and no precipitation; precautionary measurements made in the morning, and that snow melted, followed by at least two more light flurries, which also melted and were not measured |
| 1/28/2011 |
11:59 PM |
M |
0.1 |
M |
6.0 |
M |
Overcast, nearly calm and no precipitation; occasional flurries during the day, accompanied by some melting |
| 1/29/2011 |
11:59 PM |
M |
T |
M |
5.5 |
M |
Overcast, calm and extremely fine, stray flurry (invisible without my flashlight); fine snowfall during most of the day, but continuous melting due to temperatures around freezing |
| 1/30/2011 |
11:59 PM |
M |
0.4 |
M |
6.0 |
M |
Overcast, slightly windy and no precipitation; periods of lake effect snow throughout the day, plus sunshine during the afternoon from breaks in the clouds; melting occurred at three of my four stations, resulting in data from only one of them |
| 1/31/2011 |
11:59 PM |
M |
0.1 |
M |
5.5 |
M |
Overcast, slightly windy and no precipitation; precautionary measurement made in late morning at station 1 (mostly sunny, slightly windy and no precipitation); all four stations were bare by midnight |
| 2/1/2011 |
11:59 PM |
M |
1.2 |
M |
7.0 |
M |
Overcast, slightly windy and snowing lightly |
| 2/2/2011 |
11:59 PM |
M |
4.3 |
M |
11.0 |
M |
Overcast, slightly windy and light flurry |
| 2/3/2011 |
11:59 PM |
M |
1.1 |
M |
9.5 |
M |
Clear, windy (W-WSW @ 3-6 mph; beginning with this report, all measurements of wind speed and direction are being taken from http://www.websterweather.com/default.asp) and no precipitation; precautionary measurements made at 0825-0828 because of anticipated melting during this totally sunny day (all 4 stations did melt completely) |
| 2/4/2011 |
11:59 PM |
M |
0.0 |
M |
8.5 |
M |
Clear, calm and no precipitation |
| 2/5/2011 |
11:54 PM |
M |
2.1 |
M |
10.5 |
M |
Overcast, slightly windy and very fine snow; precipitation during the late afternoon and evening sometimes included wet sleet |
| 2/6/2011 |
11:59 PM |
M |
T |
M |
9.5 |
M |
Overcast, very slightly windy and no precipitation; precautionary measurements made at 0956-0958 because of anticipated melting; all four stations were bare by midnight |
| 2/7/2011 |
11:59 PM |
M |
1.1 |
M |
9.0 |
M |
Overcast, slightly windy and fine snow |
| 2/8/2011 |
11:59 PM |
M |
1.8 |
M |
10.0 |
M |
Clear, windy and no precipitation; precautionary measurements made at 0825-0829 because of potential melting; measurements made at midnight showed up to 1/4" of melting had occurred, although another 1/8" had also accumulated later in the morning; conditions during the precautionary measurements were partly cloudy, windy and extremely fine snow |
| 2/9/2011 |
11:59 PM |
M |
0.0 |
M |
9.5 |
M |
Overcast, calm and occasional snowflake from Lake Erie (northeastern fringe) |
| 2/10/2011 |
11:59 PM |
M |
0.0 |
M |
9.5 |
M |
Clear, slightly windy and no precipitation |
| 2/11/2011 |
11:59 PM |
M |
0.0 |
M |
9.0 |
M |
Overcast, very slightly windy and no precipitation |
| 2/12/2011 |
9:12 AM |
M |
0.4 |
M |
M |
M |
Overcast, calm and light snow (measurements taken before leaving town for the weekend) |
| 2/13/2011 |
11:59 PM |
M |
M |
M |
7.5 |
M |
Thin overcast (first quarter moon is visible), slightly windy and no precipitation; unable to report new snowfall due to being out of town for most of the day |
| 2/14/2011 |
11:59 PM |
M |
0.0 |
M |
6.0 |
M |
Mostly clear, slightly windy and no precipitation |
| 2/15/2011 |
11:59 PM |
M |
T |
M |
5.0 |
M |
Thin overcast (gibbous moon is visible, with a hint of a ring), nearly calm and no precipitation; a brief, light flurry occurred at about 0930, with no accumulation |
| 2/16/2011 |
11:59 PM |
M |
0.0 |
M |
5.0 |
M |
Clear (difficult to tell whether there is extremely thin, high haze because of a brightly lit sky from a nearly full moon), nearly calm and no precipitation |
| 2/17/2011 |
11:59 PM |
M |
0.0 |
M |
3.0 |
M |
Overcast, slightly windy and no precipitation |
| 2/18/2011 |
11:59 PM |
M |
0.0 |
M |
0.0 |
M |
Overcast, strong winds and no precipitation; practically all of the snow has melted, except for accumulations from plowing and shoveling along roads and driveways (photos) |
| 2/19/2011 |
11:59 PM |
M |
0.6 |
M |
0.5 |
M |
Overcast, windy and no precipitation; minor to moderate lake effect snow for most of the day, coupled with strong and gusty winds, yielded negligible accumulation |
| 2/20/2011 |
11:57 PM |
M |
0.8 |
M |
1.0 |
M |
Overcast, nearly calm and light to moderate snow |
| 2/21/2011 |
11:59 PM |
M |
0.5 |
M |
1.5 |
M |
Overcast, somewhat windy and no precipitation |
| 2/22/2011 |
11:59 PM |
M |
T |
M |
1.0 |
M |
Clear, nearly calm and no precipitation; very light flurry during most of the morning and early afternoon, but no accumulation |
| 2/23/2011 |
11:59 PM |
M |
0.0 |
M |
1.0 |
M |
Clear, nearly calm and no precipitation; some bare spots of varying size |
| 2/24/2011 |
11:59 PM |
M |
T |
M |
0.5 |
M |
Overcast, calm and no precipitation, but enough humidity to illuminate the beam of my flashlight; brief, occasional snow alternating with minor rain during mid- to late-morning, but no accumulation due to melting and the brief, light rain; more and somewhat larger, bare patches, although most of the ground is still covered |
| 2/25/2011 |
11:59 PM |
M |
5.6 |
M |
6.0 |
M |
Overcast, windy and no precipitation; each of my four stations is about one foot off the ground and is therefore subject to the wind, which obviously was a problem for my measurements today; my measurements were 6", 2.5", 1.5" and 1.75", respectively, which simply were incorrect at stations 2-4; thus, I subtracted last night's snow cover depth from tonight's snow cover depth to calculate today's snowfall |
| 2/26/2011 |
11:59 PM |
M |
1.6 |
M |
6.5 |
M |
Overcast, nearly calm and moderate snow of large flakes; a fine snow during the morning and parts of the afternoon failed to increase today's accumulation due to melting |
| 2/27/2011 |
11:59 PM |
M |
1.6 |
M |
3.5 |
M |
Overcast, windy and no precipitation; precautionary measurements made at 0858-0903 because of anticipated melting (partly cloudy, slightly windy and no precipitation [tough to measure due to large snowflakes creating an irregular surface]); all four stations were bare by midday |
| 2/28/2011 |
11:59 PM |
M |
0.0 |
M |
1.0 |
M |
Clear, very windy and no precipitation; hard crust and icy patches from all of the rain after midnight and through early morning |
| 3/1/2011 |
11:54 PM |
M |
0.0 |
M |
1.0 |
M |
Nearly clear, windy and no precipitation; hard crust and larger, icy patches in low-lying areas |
| 3/2/2011 |
10:54 PM |
M |
0.4 |
M |
1.0 |
M |
Precautionary measurements made at 0945-0948 because of anticipated melting (partly cloudy, windy and no precipitation); more lake effect flurries occasionally during the late morning and early afternoon, but no accumulation; conditions at 2254 when I measured the snow depth were nearly overcast, windy and no precipitation |
| 3/3/2011 |
11:45 PM |
M |
0.0 |
M |
1.0 |
M |
Overcast, windy and no precipitation |
| 3/4/2011 |
11:59 PM |
M |
0.0 |
M |
T |
M |
Overcast, slightly windy and no precipitation |
| 3/5/2011 |
11:59 PM |
M |
0.0 |
M |
0.0 |
M |
Overcast, windy and light rain; the only remaining snow is in snowbanks from plowing or shoveling |
| 3/6/2011 |
11:59 PM |
M |
3.6 |
M |
4.0 |
M |
Overcast, slightly windy and no precipitation |
| 3/7/2011 |
11:59 PM |
M |
0.0 |
M |
3.0 |
M |
Clear, nearly calm and no precipitation |
| 3/8/2011 |
11:59 PM |
M |
0.0 |
M |
2.5 |
M |
Clear, somewhat windy and no precipitation |
| 3/9/2011 |
11:59 PM |
M |
T |
M |
1.5 |
M |
Overcast, windy and light rain; extremely fine snow requiring a dark background to be seen during the early afternoon changed in about an hour to alternations of light sleet and rain for several hours, accumulating infrequent, tiny patches of minor ice |
| 3/10/2011 |
11:59 PM |
M |
0.0 |
M |
0.0 |
M |
Overcast, slightly windy and no precipitation (for the moment; there is lots all around us); today's considerable rain and warm temperatures (upper 40s) have melted most of the piles of plowed and shoveled snow |
| 3/11/2011 |
11:59 PM |
M |
1.3 |
M |
1.5 |
M |
Overcast, windy and light snow which began at ~1600 |
| 3/12/2011 |
11:59 PM |
M |
0.0 |
M |
0.0 |
M |
Precautionary measurement made at 1146 because of anticipated melting (overcast, very windy and no precipitation) |
| 3/13/2011 |
11:59 PM |
M |
0.1 |
M |
0.0 |
M |
Overcast, slightly windy and light snow; several, brief periods of extremely light flurries during the afternoon with melting temperatures, followed by very light snow during the evening |
| 3/14/2011 |
11:59 PM |
M |
0.5 |
M |
0.0 |
M |
Precautionary measurements made at 0809-0811 because of anticipated melting (overcast, calm and an occasional snowflake); the snow was melted by midday |
| 3/15/2011 |
11:59 PM |
M |
0.0 |
M |
0.0 |
M |
Overcast, slightly windy and a light drizzle; most of the piles of snow are gone |
| 3/23/2011 |
11:59 PM |
M |
3.7 |
M |
3.5 |
M |
Overcast, windy and moderate, fine, wet snow |
| 3/24/2011 |
11:59 PM |
M |
T |
M |
1.5 |
M |
Clear, slightly windy and no precipitation; precautionary measurements made at 0828-0830 because of anticipated melting (mostly clear, slightly windy and no precipitation) |
| 3/25/2011 |
12:35 AM |
M |
M |
M |
M |
M |
I will be away from March 25 through April 10, and this may be my last report for this winter. |
| 4/17/2011 |
11:59 PM |
M |
T |
M |
0.0 |
M |
Clear, windy and no precipitation; brief, scattered showers of wet snow, mixed with rain, during the very late afternoon |
| 4/18/2011 |
11:59 PM |
M |
T |
M |
0.0 |
M |
1239 - c1700: very fine snow which eventually became heavy, wet flakes until it disappeared; conditions at the time of this report are mostly clear, calm and no precipitation |