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Data Calendar for Alton (IA10)

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:  

 

Apr 2025May 2025 Jun 2025
SundayMondayTuesdayWednesday ThursdayFridaySaturday
2728293001
High: 64.8
Low: 45.5
Precip: 0.00
Avg Wind: NNW @ 8.7
Gust: 36 (12:25 PM)
RH% Min/Max: 48-91
Feel Min/Max: 44 to 65		02
High: 64.2
Low: 39.9
Precip: 0.00
Avg Wind: NNW @ 10.3
Gust: 29 (4:00 PM)
RH% Min/Max: 30-91
Feel Min/Max: 38 to 64		03
High: 71.8
Low: 30.7
Precip: 0.00
Avg Wind: NNW @ 1.8
Gust: 18 (11:25 AM)
RH% Min/Max: 21-91
Feel Min/Max: 31 to 72
04
High: 78.6
Low: 38.1
Precip: 0.00
Avg Wind: ESE @ 2.8
Gust: 20 (6:30 PM)
RH% Min/Max: 21-79
Feel Min/Max: 38 to 79		05
High: 80.1
Low: 40.3
Precip: 0.00
Avg Wind: E @ 3.8
Gust: 20 (1:40 PM)
RH% Min/Max: 24-84
Feel Min/Max: 40 to 80		06
High: 83.8
Low: 48.6
Precip: 0.00
Avg Wind: ESE @ 5.5
Gust: 23 (6:20 PM)
RH% Min/Max: 21-73
Feel Min/Max: 47 to 81		07
High: 82
Low: 49.5
Precip: 0.00
Avg Wind: NE @ 8.4
Gust: 22 (2:05 PM)
RH% Min/Max: 22-76
Feel Min/Max: 47 to 80		08
High: 80.8
Low: 52
Precip: 0.00
Avg Wind: ENE @ 7.3
Gust: 22 (8:10 AM)
RH% Min/Max: 31-78
Feel Min/Max: 52 to 80		09
High: 91
Low: 45.7
Precip: 0.00
Avg Wind: NW @ 4.7
Gust: 18 (1:40 PM)
RH% Min/Max: 14-60
Feel Min/Max: 46 to 88		10
High: 88.7
Low: 56.3
Precip: 0.00
Avg Wind: E @ 8.5
Gust: 22 (6:40 PM)
RH% Min/Max: 11-45
Feel Min/Max: 56 to 85
11
High: 90.5
Low: 60.3
Precip: 0.00
Avg Wind: S @ 15.8
Gust: 37 (4:00 PM)
RH% Min/Max: 14-54
Feel Min/Max: 60 to 88		12
High: 88.5
Low: 55
Precip: 0.00
Avg Wind: SSE @ 14.2
Gust: 31 (3:30 PM)
RH% Min/Max: 15-55
Feel Min/Max: 55 to 85		13
High: 89.2
Low: 58.5
Precip: 0.00
Avg Wind: SSE @ 11.2
Gust: 30 (6:50 PM)
RH% Min/Max: 31-62
Feel Min/Max: 58 to 87		14
High: 88.2
Low: 62.8
Precip: 0.00
Avg Wind: ESE @ 11.5
Gust: 26 (5:10 PM)
RH% Min/Max: 31-84
Feel Min/Max: 63 to 87		15
High: 75.6
Low: 57.9
Precip: 0.00
Gust: 42 (2:30 PM)
RH% Min/Max: 33-91
Feel Min/Max: 58 to 76		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.