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Data Calendar for Grinnell

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:  

 

Mar 2026Apr 2026 May 2026
SundayMondayTuesdayWednesday ThursdayFridaySaturday
29303101
High: 49.2
Low: 39.6
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 50-93		02
High: 66.2
Low: 38.9
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 82-98
Feel Min/Max: 51 to 66		03
High: 53.3
Low: 34.5
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 80-95
Feel Min/Max: 50 to 53		04
High: 50.5
Low: 38
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 67-96
Feel Min/Max: 50 to 50
05
High: 58.9
Low: 32.8
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 47-85
Feel Min/Max: 50 to 59		06
High: 52.4
Low: 35.6
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 39-86
Feel Min/Max: 50 to 52		07
High: 42.1
Low: 32.9
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 53-72		08
High: 72.5
Low: 38.7
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 36-77
Feel Min/Max: 50 to 72		09
High: 59.8
Low: 41.4
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 34-95
Feel Min/Max: 50 to 60		10
High: 58
Low: 36.8
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 44-95
Feel Min/Max: 50 to 58		11
High: 55.5
Low: 34.8
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 71-92
Feel Min/Max: 50 to 56
12
High: 72.7
Low: 55.8
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 70-96
Feel Min/Max: 56 to 73		13
High: 80
Low: 55
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 67-98
Feel Min/Max: 55 to 83		14
High: 85.8
Low: 62.3
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 43-89
Feel Min/Max: 62 to 89		15
High: 76.9
Low: 55.1
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 70-96
Feel Min/Max: 55 to 77		16
High: 81.9
Low: 52.8
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 35-96
Feel Min/Max: 53 to 81		17
High: 81.6
Low: 46.1
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 58-91
Feel Min/Max: 50 to 85		18
High: 52.6
Low: 33.8
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 24-73
Feel Min/Max: 50 to 53
19
High: 57
Low: 31.2
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 28-75
Feel Min/Max: 50 to 57		20
High: 65.3
Low: 27.9
Precip: M
Avg Wind: N @ 0.0
RH% Min/Max: 35-90
Feel Min/Max: 50 to 65		21
High: 59.9
Low: 55.4
Precip: M
RH% Min/Max: 60-67
Feel Min/Max: 55 to 60		22

Precip: M		232425
26272829300102

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.