| Observation Date |
Observation Time |
Precipitation |
Snowfall |
Snowfall SWE |
Snow Depth |
Snow SWE |
Notes |
| 10/1/2019 |
7:00 AM |
0.01 |
M |
M |
M |
M |
Steady mist. Cool. Cloudy. |
| 10/2/2019 |
7:00 AM |
0.31 |
M |
M |
M |
M |
Steady, continuous mist. Cloudy. Most of the day. |
| 10/10/2019 |
8:00 AM |
0.30 |
2.0 |
0.10 |
2.0 |
0.10 |
Started snowing harder at 7:10 AM. About 1.5" of snow from 7:10 AM to 8:00 AM. Rain last night. Cold front blew in at 5:00 PM yesterday with steady wind and dust. |
| 10/11/2019 |
7:00 AM |
0.38 |
2.5 |
0.28 |
4.5 |
0.38 |
Snow measured at 12:15 PM as the snowfall tapered off. Heavy snowfall between 0700 - 1030. Cold this morning with snow-covered foothills. 2" of snow from 0710-0800, recorded yesterday. |
| 10/25/2019 |
7:00 AM |
0.00 |
0.0 |
M |
6.0 |
0.80 |
Day after snow |
| 10/28/2019 |
9:40 AM |
0.56 |
5.5 |
0.56 |
5.5 |
0.56 |
Air mostly calm. Even, flat layer of snow across backyard. Had 1.0" of water in rain gage for past 3-days. Missed a reporting day. Conditions at 0940 were 100% cloud cover, warming, not snowing, 26-degrees. |
| 10/29/2019 |
9:00 AM |
0.40 |
3.0 |
0.40 |
5.5 |
0.80 |
3" of new snow on top of 2.5". Temp = 10 deg. F. Cloudy. Light snow from 9:00 AM to 12:30 PM. Snowfall picking up at 12:30 PM. |
| 10/30/2019 |
7:00 AM |
0.15 |
1.7 |
0.15 |
6.5 |
0.56 |
Air temp: 5-degrees F., Calm. 80% clear sky. Slippery roads. Intermittent light snowfall. |
| 11/21/2019 |
7:00 AM |
0.25 |
0.5 |
0.25 |
0.5 |
0.25 |
Started with rain on 11/20/2019. Turned to snow at about 5:30 PM. Did not capture rainfall. 100% cloud cover at time of reading. Snow had icy crust. |
| 11/22/2019 |
7:00 AM |
0.44 |
4.5 |
0.44 |
4.5 |
0.44 |
Snowing at time of measurement, but starting to taper off. Calm air. 26-deg F. Icy streets. Thin layer of crusty snow/ice in places from previous precipitation. Started as rain, then turned to snow. Did not capture rain. |
| 11/26/2019 |
7:00 AM |
1.70 |
16.5 |
1.70 |
16.5 |
1.70 |
Started snowing at 3:00 PM on 11/25/2019. Snow ended at 12:30 PM on 11/26/2019. 3 feet drifts in places. Heavy, wet snow. Temperatures of 30-35 degrees. |
| 11/27/2019 |
7:00 AM |
0.00 |
0.0 |
M |
13.5 |
1.70 |
Snow settled about 3 inches. No melting. Cold. 14°F. |
| 11/29/2019 |
7:00 AM |
0.00 |
0.0 |
0.00 |
9.0 |
1.70 |
No melting due to cold temperatures. Just settlement. |
| 12/29/2019 |
7:00 AM |
0.25 |
2.0 |
0.25 |
2.0 |
0.25 |
Light snow over ~10 hours. Light winds at times. |
| 2/4/2020 |
9:00 AM |
0.56 |
8.0 |
0.56 |
8.0 |
0.56 |
Some rain before the snow on 2/3/2020. Streets were wet. Then temperature dropped; snow started around 8:30 am. Not much wind. Snow stopped on morning of 2/4/2020. Some intermittent sun. |
| 2/7/2020 |
7:00 AM |
0.67 |
6.0 |
0.67 |
6.0 |
0.67 |
Snow falling at 1-inch per hour. Measured 9" at same location at 10:00 AM. Some wind during the night. Temperature is rising and sky is getting lighter. Still snowing. |
| 2/8/2020 |
7:00 AM |
0.61 |
5.0 |
0.61 |
11.0 |
0.67 |
|
| 2/9/2020 |
7:00 AM |
0.36 |
3.0 |
0.36 |
11.0 |
1.31 |
|
| 2/16/2020 |
7:00 AM |
0.00 |
0.0 |
0.00 |
9.0 |
2.00 |
Existing snow Has a hard thin crust on top. |
| 3/20/2020 |
9:00 AM |
1.10 |
10.0 |
1.10 |
10.0 |
1.10 |
Received a trace of snow overnight after I checked depth and water content at 9:52 PM on 3/19. Calm air and 20-degrees F. at time of today's reading. Clouds are thinning. Did not capture rain quantity that happened before the snow started. |
| 4/16/2020 |
7:00 AM |
1.25 |
8.0 |
1.25 |
8.0 |
1.25 |
Was snowing lightly at time of observation. Wet, heavy snow. Temperature of 26-degrees F. |
| 4/17/2020 |
7:00 AM |
0.06 |
1.0 |
0.06 |
9.0 |
1.31 |
Sunny today, but still cold. Air temp = 22-degrees. 1" of new snow since report on 4/16/20. |
| 4/23/2020 |
7:00 AM |
0.04 |
M |
M |
M |
M |
4/22/2020: Thundered at 4:45 PM. Started raining at 4:53 PM. Intense for 4 minutes, then done by 5:09 PM. Sunny most of the day. |
| 4/24/2020 |
7:00 AM |
0.01 |
M |
M |
M |
M |
Light, short rain during the night. |
| 5/12/2020 |
7:00 AM |
0.05 |
M |
M |
M |
M |
Cool & cloudy for most of the past 24 hours. Windy at times, but calm at observation time. Rained for short time; never intensely. |
| 5/15/2020 |
7:00 AM |
0.30 |
M |
M |
M |
M |
Most (0.25") of this precipitation came during one intense thunderstorm on 5/14/20 from 2:25 PM to 2:45 PM. I made a severe weather report for that. The rest of the rainfall came at various times in small quantities. |
| 5/25/2020 |
7:00 AM |
1.05 |
M |
M |
M |
M |
Was cloudy most of the day. Light, steady rain with a few periods of more intense rainfall. Much needed moisture. |
| 5/28/2020 |
7:00 AM |
T |
M |
M |
M |
M |
Scattered rain clouds in the area. Received a Trace of rain at 2:45 PM on 5/27/2020. If I hadn't been outside at the time, I wouldn't have noticed it. |
| 5/31/2020 |
7:00 AM |
0.50 |
M |
M |
M |
M |
Strong thunderstorm around 8:00 PM on 5/30/2020. Heavy rain for about 10 minutes. Lightning and thunder one after another. |
| 6/1/2020 |
7:00 AM |
0.05 |
M |
M |
M |
M |
Passing storms with light intermittent rainfall. There was enough rain to bead up on a recently sealed concrete patio. Warm temperature into the night. |
| 6/9/2020 |
7:00 AM |
0.48 |
M |
M |
M |
M |
Mild thunderstorm. Snow in foothills to the West of Arvada. Cool. 42 deg F. |
| 6/19/2020 |
7:00 AM |
0.40 |
M |
M |
M |
M |
Cool weather. Cloudy. Slow steady rain over several hours. |
| 6/27/2020 |
7:00 AM |
0.75 |
M |
M |
M |
M |
Most of the rainfall came from an intense thunderstorm at 4:38 PM on 6/26/20 with some hail. Downpour lasted 10-15 minutes. Had 0.6" at 6:58 PM. The rest came from lighter rains. |
| 7/14/2020 |
7:00 AM |
0.01 |
M |
M |
M |
M |
Mostly cloudy day. Intermittent light rainfall that was enough to wet the surfaces of sidewalks and cars. Calm air. |
| 7/22/2020 |
7:00 AM |
0.01 |
M |
M |
M |
M |
10:50 PM: rained about 20 minutes after wind kicked up. |
| 7/23/2020 |
7:00 AM |
0.01 |
M |
M |
M |
M |
Mild thunderstorm on evening of 7/22/2020. From 6:00 PM to 6:55 PM. Light rain. |
| 7/25/2020 |
7:00 AM |
0.18 |
M |
M |
M |
M |
A few light showers starting at 4:45 PM. First round dropped 0.02" of rain in about 45 minutes. |
| 7/26/2020 |
7:00 AM |
0.20 |
M |
M |
M |
M |
Cool & cloudy most of the day. |
| 7/27/2020 |
7:00 AM |
0.09 |
M |
M |
M |
M |
Cloudy most of the day. Sky cleared overnight for sunny start of day. |
| 7/28/2020 |
7:00 AM |
0.00 |
0.0 |
M |
M |
M |
No observed precip. Mostly cloudy start for today. |
| 7/29/2020 |
7:00 AM |
0.01 |
M |
M |
M |
M |
One passing light rain around 3:15 PM on 7/28/2020. Was enough to cover a sealed concrete surface. Periods of cloud cover and sunshine. Cooler air, humid. |
| 7/31/2020 |
7:00 AM |
0.02 |
M |
M |
M |
M |
A fast moving band of rain crossed the area. It rained enough to wet the streets and put some water in the gutters. It happened sometime around 7:30 PM. |
| 8/1/2020 |
7:00 AM |
0.12 |
M |
M |
M |
M |
Strong thunderstorm with wind and heavy rain. Plenty of lightning. Fast moving. About 12 minutes. |
| 8/2/2020 |
7:00 AM |
T |
M |
M |
M |
M |
Alternating clouds and sun for most of the day on 8/1/2020. 2 separate light rains at 1400 and 1647. |
| 8/3/2020 |
7:00 AM |
T |
M |
M |
M |
M |
|
| 8/6/2020 |
7:00 AM |
0.02 |
M |
M |
M |
M |
8/5/2020, 4:15 PM: Strong thunderstorm with lots of lightning, but only light rainfall. |
| 8/27/2020 |
7:00 AM |
0.01 |
M |
M |
M |
M |
Short, light rain. Evening of 8/26/2020. |
| 8/29/2020 |
7:00 AM |
0.10 |
M |
M |
M |
M |
Late afternoon, early evening shower with lasting cloud cover. Cooler temperatures. |
| 9/8/2020 |
7:00 AM |
0.30 |
M |
M |
M |
M |
Started raining around 2300 on 9/7/2020. Wildfire smoke was bad during the day. |
| 9/9/2020 |
7:00 AM |
0.50 |
3.5 |
0.50 |
3.5 |
0.50 |
Wet, heavy snow. Leaves are still on the trees. |