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Data Calendar for Grinnell (I-80)

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/Chicago timezone. Wind speeds are in mph and temperatures in Fahrenheit. Values flagged with a (E) are estimated by the IEM.

Year:  

Month:  

 

May 2026Jun 2026 Jul 2026
SundayMondayTuesdayWednesday ThursdayFridaySaturday
3101
High: 87.1
Low: 62.1
Precip: 0.00
Avg Wind: SSW @ 0.2
Gust: 6 (9:10 PM)
RH% Min/Max: 38-87
Feel Min/Max: 62 to 87
02
High: 82.6
Low: 56.1
Precip: 0.00
Avg Wind: WSW @ 0.1
Gust: 7 (12:20 AM)
RH% Min/Max: 20-57
Feel Min/Max: 56 to 80
03
High: 82
Low: 59.7
Precip: 0.00
Avg Wind: NNW @ 0.2
Gust: 11 (6:10 PM)
RH% Min/Max: 25-57
Feel Min/Max: 60 to 80
04
High: 83.7
Low: 61
Precip: 0.00
Avg Wind: N @ 0.3
Gust: 10 (1:20 PM)
RH% Min/Max: 48-99
Feel Min/Max: 61 to 85
05
High: 82.9
Low: 66.4
Precip: 0.00
Avg Wind: NNE @ 0.4
Gust: 11 (3:40 PM)
RH% Min/Max: 61-99
Feel Min/Max: 66 to 87
06
High: 89.2
Low: 67.6
Precip: 0.00
Gust: 30 (2:05 AM)
RH% Min/Max: 40-96
Feel Min/Max: 68 to 90
07

Precip: M
080910111213
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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.