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Data Calendar for I-80 @ Grassey

The calendar chart below shows the daily reported climate variables. You can click on a date to display the values for all sites for that day. Time stamps are displayed in the America/Denver timezone. Wind speeds are in mph and temperatures in Fahrenheit. Values flagged with a (E) are estimated by the IEM.

Year:  

Month:  

 

Dec 2025Jan 2026 Feb 2026
SundayMondayTuesdayWednesday ThursdayFridaySaturday
2829303101
High: 36.690823
Low: 28.569178
Precip: M
Avg Wind: NE @ 2.8
Gust: 9 (6:20 AM)
RH% Min/Max: 58-100
Feel Min/Max: 21 to 36		02
High: 50.849617
Low: 32.820778
Precip: M
Avg Wind: SW @ 6.8
Gust: 18 (1:20 PM)
RH% Min/Max: 59-100
Feel Min/Max: 26 to 51		03
High: 50.410385
Low: 35.41998
Precip: M
Avg Wind: SW @ 8.9
Gust: 26 (6:50 PM)
RH% Min/Max: 57-91
Feel Min/Max: 29 to 50
04
High: 50.89999
Low: 41.700203
Precip: M
Avg Wind: SSW @ 8.9
Gust: 23 (2:40 PM)
RH% Min/Max: 57-93
Feel Min/Max: 36 to 51		05
High: 47.229786
Low: 37.29919
Precip: M
Avg Wind: SW @ 7.6
Gust: 34 (3:00 AM)
RH% Min/Max: 52-89
Feel Min/Max: 29 to 46		06
High: 47.879627
Low: 33.150204
Precip: M
Avg Wind: SW @ 6.4
Gust: 22 (1:30 PM)
RH% Min/Max: 44-79
Feel Min/Max: 28 to 44		07
High: 43.5308
Low: 32.18
Precip: M
Avg Wind: WSW @ 7.4
Gust: 23 (12:30 PM)
RH% Min/Max: 55-86
Feel Min/Max: 25 to 40		08
High: 35.529785
Low: 23.939594
Precip: M
Avg Wind: NNW @ 13.8
Gust: 39 (2:20 PM)
RH% Min/Max: 55-98
Feel Min/Max: 13 to 33		09
High: 32.360012
Low: 18.809584
Precip: M
Avg Wind: ENE @ 3.2
Gust: 14 (12:00 AM)
RH% Min/Max: 51-71
Feel Min/Max: 10 to 32		10
High: 33.799988
Low: 22.139595
Precip: M
Avg Wind: N @ 4.9
Gust: 15 (8:20 PM)
RH% Min/Max: 58-87
Feel Min/Max: 14 to 34
11
High: 35.6792
Low: 22.269178
Precip: M
Avg Wind: N @ 4.1
Gust: 13 (6:20 PM)
RH% Min/Max: 61-90
Feel Min/Max: 15 to 36		12
High: 38.260384
Low: 24.040394
Precip: M
Avg Wind: N @ 3.8
Gust: 16 (10:20 PM)
RH% Min/Max: 62-92
Feel Min/Max: 17 to 38		13
High: 41.44999
Low: 25.3292
Precip: M
Avg Wind: NNE @ 4.5
Gust: 13 (10:10 PM)
RH% Min/Max: 60-94
Feel Min/Max: 18 to 41		14
High: 44.72062
Low: 24.720778
Precip: M
Avg Wind: N @ 4.2
Gust: 17 (7:40 PM)
RH% Min/Max: 54-96
Feel Min/Max: 19 to 45		15
High: 36.23
Low: 28.140821
Precip: M
Gust: 5 (12:30 AM)
RH% Min/Max: 72-92
Feel Min/Max: 25 to 36		16

Precip: M		17
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The data presented here provided by IEM API webservice: daily.json. A simple CSV option exists as well.

Daily High/Low Plot


Description: This chart of the monthly temperature data. The bars are the observations and the dots are climatology.

Daily Rainfall


Description: This chart is of daily precipitation for the month. The red line would be an average month while the blue line and bars are observations.

Daily Average Wind Speeds


Description: This chart is of the daily average wind speeds.

The data presented here provided by IEM API webservice: daily.json. A simple CSV option exists as well.