Station Overview Station Location
Station Number AZ-CN-15 Latitude 35.1963029
Station Name Flagstaff 4.4 E Longitude -111.5720209
County Coconino Elevation (ft) 6843



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 09 1.39 0.09 2 0.09 2 0.00 0 0 2 0 0.0 0 0
Nov 09 1.47 0.84 4 0.84 4 0.00 0 0 4 0 2.1 1 0
Dec 09 1.68 1.98 6 1.98 6 0.00 0 0 6 0 22.0 3 1
Jan 10 1.87 1.95 5 1.95 5 0.00 0 0 3 0 26.1 3 2
Feb 10 1.85 3.61 8 3.61 8 0.00 0 0 7 0 18.7 6 3
March 10 1.78 1.46 7 1.46 7 0.00 0 0 6 0 9.7 6 4
April 10 1.13 1.16 8 1.16 8 0.00 0 0 8 0 5.9 4 1
May 10 0.56 0.05 6 0.05 6 0.00 0 0 2 0 0.0 0 0
June 10 0.37 0.04 2 0.04 2 0.00 0 0 1 0 0.0 0 0
July 10 2.35 3.82 21 3.82 21 0.00 0 0 15 0 0.0 0 0
Aug 10 3.13 1.78 8 1.78 8 0.00 0 0 5 0 0.0 0 0
Sept 10 2.17 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 19.75" 16.78" 77 days 16.78" 77 0.00" 0 days 0 59 days 0 days 84.5" 23 days 11 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2009
10/2/2009
10/3/2009
10/4/2009
10/5/2009
10/6/2009
10/7/2009 0.04
10/8/2009
10/9/2009
10/10/2009
10/11/2009
10/12/2009
10/13/2009
10/14/2009
10/15/2009
10/16/2009
10/17/2009
10/18/2009
10/19/2009
10/20/2009
10/21/2009
10/22/2009
10/23/2009
10/24/2009
10/25/2009
10/26/2009
10/27/2009
10/28/2009
10/29/2009 0.05
10/30/2009
10/31/2009
11/1/2009
11/2/2009
11/3/2009
11/4/2009
11/5/2009
11/6/2009
11/7/2009
11/8/2009
11/9/2009
11/10/2009
11/11/2009
11/12/2009
11/13/2009 0.03
11/14/2009 0.49
11/15/2009
11/16/2009
11/17/2009
11/18/2009
11/19/2009
11/20/2009
11/21/2009
11/22/2009
11/23/2009
11/24/2009
11/25/2009
11/26/2009
11/27/2009
11/28/2009
11/29/2009 0.25
11/30/2009 0.07
12/1/2009
12/2/2009
12/3/2009
12/4/2009
12/5/2009
12/6/2009
12/7/2009
12/8/2009 0.63
12/9/2009
12/10/2009
12/11/2009
12/12/2009 M
12/13/2009 0.58
12/14/2009
12/15/2009
12/16/2009
12/17/2009
12/18/2009
12/19/2009
12/20/2009
12/21/2009
12/22/2009
12/23/2009 0.39
12/24/2009
12/25/2009
12/26/2009
12/27/2009
12/28/2009
12/29/2009 0.18
12/30/2009 0.02
12/31/2009 0.18
Day of YearDaily PrcpMultiday Prcp
1/1/2010
1/2/2010
1/3/2010
1/4/2010
1/5/2010
1/6/2010
1/7/2010
1/8/2010
1/9/2010
1/10/2010
1/11/2010
1/12/2010
1/13/2010
1/14/2010 0.00
1/15/2010
1/16/2010
1/17/2010
1/18/2010
1/19/2010 0.60
1/20/2010 0.65
1/21/2010 0.70
1/22/2010
1/23/2010
1/24/2010
1/25/2010
1/26/2010
1/27/2010
1/28/2010 0.00
1/29/2010
1/30/2010
1/31/2010
2/1/2010
2/2/2010
2/3/2010
2/4/2010
2/5/2010
2/6/2010 0.00
2/7/2010 0.69
2/8/2010
2/9/2010 0.80
2/10/2010
2/11/2010 0.75
2/12/2010
2/13/2010
2/14/2010
2/15/2010
2/16/2010
2/17/2010
2/18/2010
2/19/2010
2/20/2010
2/21/2010 0.21
2/22/2010 0.61
2/23/2010 0.46
2/24/2010
2/25/2010
2/26/2010
2/27/2010
2/28/2010 0.09
3/1/2010
3/2/2010
3/3/2010
3/4/2010
3/5/2010 0.10
3/6/2010
3/7/2010 0.51
3/8/2010 0.19
3/9/2010 0.10
3/10/2010 0.37
3/11/2010 0.19
3/12/2010 0.00
3/13/2010
3/14/2010
3/15/2010
3/16/2010
3/17/2010
3/18/2010
3/19/2010
3/20/2010
3/21/2010
3/22/2010
3/23/2010
3/24/2010
3/25/2010
3/26/2010
3/27/2010
3/28/2010
3/29/2010
3/30/2010
3/31/2010
Day of YearDaily PrcpMultiday Prcp
4/1/2010 0.50
4/2/2010
4/3/2010
4/4/2010
4/5/2010
4/6/2010 0.04
4/7/2010
4/8/2010
4/9/2010
4/10/2010
4/11/2010
4/12/2010
4/13/2010 0.07
4/14/2010
4/15/2010
4/16/2010
4/17/2010
4/18/2010
4/19/2010
4/20/2010
4/21/2010 0.10
4/22/2010 0.33
4/23/2010 0.03
4/24/2010 0.03
4/25/2010
4/26/2010
4/27/2010
4/28/2010
4/29/2010
4/30/2010 0.06
5/1/2010
5/2/2010 0.03
5/3/2010 0.02
5/4/2010
5/5/2010
5/6/2010
5/7/2010
5/8/2010
5/9/2010
5/10/2010
5/11/2010
5/12/2010
5/13/2010
5/14/2010
5/15/2010
5/16/2010
5/17/2010
5/18/2010
5/19/2010
5/20/2010
5/21/2010 0.00
5/22/2010 0.00
5/23/2010 0.00
5/24/2010 0.00
5/25/2010
5/26/2010
5/27/2010
5/28/2010
5/29/2010
5/30/2010
5/31/2010
6/1/2010
6/2/2010
6/3/2010
6/4/2010
6/5/2010
6/6/2010
6/7/2010
6/8/2010
6/9/2010
6/10/2010
6/11/2010
6/12/2010 0.04
6/13/2010 0.00
6/14/2010
6/15/2010
6/16/2010
6/17/2010
6/18/2010
6/19/2010
6/20/2010
6/21/2010
6/22/2010
6/23/2010
6/24/2010
6/25/2010
6/26/2010
6/27/2010
6/28/2010
6/29/2010
6/30/2010
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.00
7/2/2010
7/3/2010
7/4/2010
7/5/2010
7/6/2010
7/7/2010
7/8/2010
7/9/2010
7/10/2010 0.02
7/11/2010 0.13
7/12/2010 0.20
7/13/2010 0.03
7/14/2010 0.00
7/15/2010
7/16/2010
7/17/2010 0.08
7/18/2010 0.12
7/19/2010 0.09
7/20/2010 0.00
7/21/2010 0.00
7/22/2010 0.26
7/23/2010 0.08
7/24/2010 0.13
7/25/2010 0.00
7/26/2010 0.00
7/27/2010 1.95
7/28/2010 0.35
7/29/2010 0.13
7/30/2010 0.18
7/31/2010 0.07
8/1/2010 0.18
8/2/2010 0.45
8/3/2010 0.33
8/4/2010 0.00
8/5/2010 0.00
8/6/2010 0.00
8/7/2010 0.28
8/8/2010 0.54
8/9/2010
8/10/2010
8/11/2010
8/12/2010
8/13/2010
8/14/2010
8/15/2010
8/16/2010
8/17/2010
8/18/2010
8/19/2010
8/20/2010
8/21/2010
8/22/2010
8/23/2010
8/24/2010
8/25/2010
8/26/2010
8/27/2010
8/28/2010
8/29/2010
8/30/2010
8/31/2010
9/1/2010
9/2/2010
9/3/2010
9/4/2010
9/5/2010
9/6/2010
9/7/2010
9/8/2010
9/9/2010
9/10/2010
9/11/2010
9/12/2010
9/13/2010
9/14/2010
9/15/2010
9/16/2010
9/17/2010
9/18/2010
9/19/2010
9/20/2010
9/21/2010
9/22/2010
9/23/2010
9/24/2010
9/25/2010
9/26/2010
9/27/2010
9/28/2010
9/29/2010
9/30/2010



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/7/2009 7:16 AM 0.04 M M M M Rain was earlier in the morning, and the reading was taken when the sun was breaking through.
10/29/2009 7:00 AM 0.05 M M M M Snow flurries
11/13/2009 7:30 AM 0.03 M M M M More rain to come
11/14/2009 7:00 AM 0.49 M M M M We needed this rain after a long dry spell.
11/29/2009 8:00 AM 0.25 2.1 M M M Overnight snow+
11/30/2009 7:00 AM 0.07 M M M M Snow flurries last night
12/8/2009 8:00 AM 0.63 20.0 2.72 M M Snow fall started in the earlier morning hours of 1/07/09 and continued steadily for about 24 hr. This morning is beautiful with blue skies and sun. Wind is strong and drifting will occur in afternoon.
12/12/2009 7:00 AM M M M M M trace amounts after a few snow flurries overnight
12/13/2009 5:00 PM 0.58 M M M M Rain, then snow started mid-morning and lasted to approximately 4 pm followed by clear skies.
12/23/2009 7:30 AM 0.39 M M 5.8 0.35 After making my measurements, there were flurries for another hour followed by strong winds. Therefore, I will not record new measurements because of drifting. Besides, today should be sunny with no new snow.
12/29/2009 8:00 AM 0.18 0.5 M M M No precipitation at time of measurement.
12/30/2009 7:00 AM 0.02 M M M M Early morning snow flurries. Stopped before measusrement.
12/31/2009 8:00 AM 0.18 1.5 0.26 M M
1/14/2010 7:00 AM 0.00 0.0 M M M Snow flurries last night. Only a trace and not measurable. Sun out and appears to be a lovely day.
1/19/2010 7:00 AM 0.60 6.5 0.49 M M Snowfall over at time of measurements. New snowfall based on weight (1gm = 0.005 inch water)
1/20/2010 7:00 AM 0.65 8.8 0.67 M M
1/21/2010 7:00 AM 0.70 10.8 0.72 18.0 M Steady snow since last night. At times, it is a blizzard. Measurements were taken when it was light snow.
1/28/2010 8:00 AM 0.00 0.0 M 19.5 M Snow flurries amounted to a trace and not measurable.
2/6/2010 9:00 AM 0.00 0.0 M M M Trace, a few snow flakes overnight
2/7/2010 8:00 AM 0.69 7.3 0.68 M M Powder snow. Overnight snow fall. Now sunny.
2/9/2010 8:00 AM 0.80 0.3 M 7.3 M
2/11/2010 9:00 AM 0.75 M M 3.0 M Overnight snow flurries
2/21/2010 8:30 AM 0.21 1.8 0.20 M M
2/22/2010 7:30 AM 0.61 6.5 0.49 M M Strong winds for past 20 hrs. caused drifting of snow. Core may have a small error.
2/23/2010 7:00 AM 0.46 2.3 0.20 8.0 M
2/28/2010 8:00 AM 0.09 0.5 0.08 M M
3/5/2010 7:30 AM 0.10 0.5 0.06 M M Snow core value may be too low because snow particles didn't stick to one another. A loss occurred on picking up the gauge.
3/7/2010 7:30 AM 0.51 2.1 0.41 M M
3/8/2010 7:00 AM 0.19 0.4 0.09 1.8 M
3/9/2010 7:30 AM 0.10 0.4 0.11 M M
3/10/2010 7:30 AM 0.37 4.5 0.46 5.5 M
3/11/2010 7:00 AM 0.19 1.8 0.15 5.0 0.60
3/12/2010 7:00 AM 0.00 0.0 M 1.3 M
4/1/2010 7:00 AM 0.50 5.0 0.22 0.5 M Snowed after midnight and ended in the middle of the night. Core and new snow measured by weight (1 g= 0.005 inches.
4/6/2010 7:00 AM 0.04 M 0.03 M M Snow fell overnight. Only a trace
4/13/2010 7:00 AM 0.07 M M M M Overnight rain and snow flurries. Only a trace on ground.
4/21/2010 9:00 AM 0.10 M M M M Sunny until 7 am, then a sprinkle intermittently, followed by occassional hail, and finally a downpour.
4/22/2010 7:00 AM 0.33 0.3 M M M The measurements were10:30 am yesterday to this morning.
4/23/2010 7:00 AM 0.03 0.3 M M M
4/24/2010 7:00 AM 0.03 M M M M
4/30/2010 7:00 AM 0.06 0.3 M M M
5/2/2010 7:00 AM 0.03 M M M M Began with flurries,then stopped, next was heavy precipitation with dusting of lawns, shrubs, and trees. Followed by sun and partly cloudy skies. Temperature since 7 am was above freezing.
5/3/2010 7:00 AM 0.02 M M M M Occasional flurries and hail started about 11:20 am yesterday with sunshine in-between. Stopped close to 6 pm and the skies were clear and stayed that way.
5/21/2010 7:00 AM 0.00 0.0 M M M Windy and warm
5/22/2010 7:00 AM 0.00 0.0 M M M
5/23/2010 7:00 AM 0.00 0.0 M M M
5/24/2010 7:00 AM 0.00 0.0 M M M
6/12/2010 7:00 AM 0.04 M M M M Rain and thunderstorms were in the early evening and ended about 9 pm followed by clear skies.
6/13/2010 7:00 AM 0.00 0.0 M M M No rain, no thunderstorms in past 24 hrs.
7/1/2010 7:00 AM 0.00 0.0 M M M Yesterday, about 1 pm, we had "10" drops of rain for the past 24 hr period.
7/10/2010 7:00 AM 0.02 M M M M
7/11/2010 7:00 AM 0.13 M M M M
7/12/2010 7:00 AM 0.20 M M M M Yesterday and today's reports are on typical monsoonal storms. Starts with sun and blue skies with clouds rolling in late in the morning. Rain and thunder came with the clouds and was intense and sprinkles at other times. The storm clouds were in our area all afternoon and clearing started about 6 to 7 pm.
7/13/2010 7:00 AM 0.03 M M M M Rain started in the afternoon and was very light. Thunder was in the distance and not very frequent. Cleared late in the day.
7/14/2010 7:00 AM 0.00 0.0 M M M Yesterday, in the late afternoon, the wind picked up, storm clouds were in the area, thunder was heard but weakly, and nothing happened. No rain. Cleared up about 7 pm.
7/17/2010 7:00 AM 0.08 M M M M Clouds started accumulating yesterday morning about 11:30 with thunder followed by rain which was off and on.
7/18/2010 7:00 AM 0.12 M M M M Storm clouds arrived about 11:30 am and intermittent rain continued for two to three hours.No nearby thunder.
7/19/2010 6:20 AM 0.09 M M M M Thunder and rain started about 12:30pm and lasted about 90 min. Later, partly cloudy with blue skies and wind.
7/20/2010 7:00 AM 0.00 0.0 M M M the day was partly cloudy, very hot, and uncomfortable.
7/21/2010 7:00 AM 0.00 0.0 M M M Yesterday,at 12:46 pm we had a loud crash of thunder that must have been very close. Wind picked up. But that was it. Only a trace of rain occurred before 7 am. Now we have clouds appearing with wind.
7/22/2010 7:00 AM 0.26 M M M M About 1:30 pm, a few sprinkles and wind. At 10:30 pm, rain lasted about an hour an accounted for the amount found this morning.
7/23/2010 7:00 AM 0.08 M M M M At 11 am, very strong thunder near us and continued in the distance (NE) for several hours. Rain started at 11 am and continued intermittently in the afternoon and evening.
7/24/2010 7:20 AM 0.13 M M M M No thunder in past 24 hrs. Rain was brief and was only a sprinkle each time.
7/25/2010 7:00 AM 0.00 0.0 M M M Partly cloudy, no precipitation.
7/26/2010 7:00 AM 0.00 0.0 M M M
7/27/2010 7:00 AM 1.95 M M M M Thunder at 11:30 am. Heavy rain at 11:45. Occasional hail.At 12:45, light rain with occasional thunder. Over at 1:40 and skies partially cleared.
7/28/2010 7:00 AM 0.35 M M M M 11:25 am thunder in distance, some dark clouds. In the pm, the skies were partly cloudy and we had occasional sunshine.From 6 pm thunder and then intermittent rain occurred til morning.
7/29/2010 7:00 AM 0.13 M M M M Rain was intermittent in the afternoon. Same with thunder which was mainly weak and distant except at 4:30 when it was close.
7/30/2010 7:35 AM 0.18 M M M M Only a sprinkle yesterday in the morning and late in the day dropping 10 drops at a time. Thunder was heard in the distance. The measured rain occurred this morning after a 15 min heavy rain starting about 7:10.
7/31/2010 7:00 AM 0.07 M M M M Yesterday showed a typical difference in the rainfall between the East and West sides of Flagstaff. My wife and I went on errands on Milton Rd., about 7 miles west of my weather station. About 2 pm, strong thunder and rain started and produced about 3 inches. Flooding occurred and it seemed that I was driving a car through a car wash. At 3:30 pm, we arrived home and saw that the rain gauge was approximately at 0.02 in.Overnight drizzles increased the precipitation to the 0.07 mark.
8/1/2010 7:00 AM 0.18 M M M M
8/2/2010 7:00 AM 0.45 M M M M Very little rain during daylight hours-only an occasional drizzle. The heavy rain must have occurred after midnight and stopped just before 7 am.
8/3/2010 7:00 AM 0.33 M M M M Yesterday was overcast with a constant drizzle beginning in the morning and lasting all day. No sunshine at all.
8/4/2010 7:00 AM 0.00 0.0 M M M A few drops at 4:30 pm and maybe later accounted for the trace found in the gauge.
8/5/2010 7:00 AM 0.00 0.0 M M M Last 24 hrs. only blue skies
8/6/2010 7:00 AM 0.00 0.0 M M M
8/7/2010 7:25 AM 0.28 M M M M Lightning and thunder started about midnight and the rain must have followed. Rain was over when I read the rain gauge.
8/8/2010 7:00 AM 0.54 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground