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Data Calendar for Mason City (I-35)

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:  

 

Dec 2025Jan 2026 Feb 2026
SundayMondayTuesdayWednesday ThursdayFridaySaturday
2829303101
High: 18
Low: 4
Precip: 0.00
Avg Wind: NNW @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 62-94
Feel Min/Max: 4 to 18		02
High: 20
Low: 14
Precip: 0.00
Avg Wind: N @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 75-92
Feel Min/Max: 14 to 20		03
High: 21
Low: 13
Precip: 0.00
Avg Wind: NNW @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 72-96
Feel Min/Max: 13 to 21
04

Precip: 0.00
Avg Wind: S @ 2.0
Gust: 2 (12:05 AM)
RH% Min/Max: 84-96		05
High: 42
Low: 28.9
Precip: 0.00
Avg Wind: E @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 65-100
Feel Min/Max: 29 to 42		06
High: 35
Low: 28
Precip: 0.00
Avg Wind: WNW @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 86-100
Feel Min/Max: 28 to 35		07
High: 47
Low: 28
Precip: 0.00
Avg Wind: S @ 2.0
Gust: 2 (12:05 AM)
RH% Min/Max: 68-99
Feel Min/Max: 28 to 47		08
High: 42
Low: 32
Precip: 0.00
Avg Wind: E @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 83-100
Feel Min/Max: 32 to 42		09
High: 37
Low: 29
Precip: 0.00
Avg Wind: NNW @ 2.0
Gust: 2 (12:05 AM)
RH% Min/Max: 70-97
Feel Min/Max: 29 to 37		10
High: 31
Low: 19
Precip: 0.00
Avg Wind: NW @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 67-98
Feel Min/Max: 19 to 31
11
High: 30
Low: 16
Precip: 0.00
Avg Wind: W @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 75-90
Feel Min/Max: 16 to 30		12
High: 45
Low: 27
Precip: 0.00
Avg Wind: WSW @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 68-91
Feel Min/Max: 27 to 45		13
High: 48
Low: 33
Precip: 0.00
Avg Wind: WNW @ 2.0
Gust: 2 (12:05 AM)
RH% Min/Max: 70-86
Feel Min/Max: 33 to 48		14
High: 33
Low: 14
Precip: 0.00
Avg Wind: NNW @ 2.0
Gust: 4 (6:00 AM)
RH% Min/Max: 51-83
Feel Min/Max: 14 to 33		15
High: 32
Low: 12
Precip: 0.00
Avg Wind: SW @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 53-89
Feel Min/Max: 12 to 32		16
High: 33
Low: 10
Precip: 0.00
Avg Wind: NW @ 2.0
Gust: 2 (12:10 AM)
RH% Min/Max: 69-99
Feel Min/Max: 10 to 33		17
High: 10
Low: 0
Precip: 0.00
Avg Wind: NW @ 2.0
Gust: 2 (12:10 AM)
RH% Min/Max: 76-87
Feel Min/Max: 0 to 10
18
High: 16
Low: -4
Precip: 0.00
Avg Wind: W @ 2.0
Gust: 2 (12:05 AM)
RH% Min/Max: 68-87
Feel Min/Max: -4 to 16		19
High: 5
Low: -8
Precip: 0.00
Avg Wind: NW @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 64-83
Feel Min/Max: -8 to 5		20
High: 15
Low: -7
Precip: 0.00
Avg Wind: SSW @ 2.0
Gust: 2 (12:05 AM)
RH% Min/Max: 63-92
Feel Min/Max: -7 to 15		21
High: 28
Low: 11
Precip: 0.00
Avg Wind: W @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 70-97
Feel Min/Max: 11 to 28		22
High: 15
Low: -12
Precip: 0.00
Avg Wind: NW @ 2.0
Gust: 2 (12:05 AM)
RH% Min/Max: 53-88
Feel Min/Max: -12 to 15		23
High: -10
Low: -21
Precip: 0.00
Avg Wind: NNW @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 54-71
Feel Min/Max: -21 to -10		24
High: -2
Low: -17
Precip: 0.00
Avg Wind: SE @ 2.0
Gust: 2 (12:00 AM)
RH% Min/Max: 63-79
Feel Min/Max: -17 to -2
25
High: -8
Low: -8
Precip: 0.00
Gust: 2 (12:15 AM)
RH% Min/Max: 78-78
Feel Min/Max: -8 to -8		26

Precip: M		2728293031

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.