Mondamin has cold winters and warm summers
A typical July afternoon reaches 86°, a January night drops to 12°, and about 29 inches of snow falls in a normal winter.
A year in Mondamin at a glance
Each month’s typical high and low, and what it brings.
What stands out about Mondamin’s climate
Read from where Mondamin sits among Iowa’s towns. The page puts what stands out first.
About 166 frost-free days a year
In half of years the last 32° night comes by April 23 and the first by October 8.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Warmer than it used to be
The last 30 years in Mondamin averaged 1.1° warmer than the 1900s. The biggest change is in March (+2.3°).
A smaller shift than in 64% of U.S. towns.
Change by month
29 inches of snow, 31 of rain and melt
May is the wettest month and January the driest. Rain or snow falls on about 93 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
What a year in Mondamin feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Living with Mondamin’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
166 frost-free days. The last frost comes by Apr 23 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 8.
About 29" a winter over 11 days with an inch or more, most in January. Snow covers the ground about 57 days a year.
Months averaging under 55° run from October through April. Heating is 86% of the year’s heating-and-cooling load.
About 33 days a year reach 90°, and July afternoons average 86°.
The nicest months are May, June, August, September and October. 0.2 miles of trails are waiting.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →How Mondamin compares
Against every U.S. town on TownTapestry, each counted once, with its place in Iowa.
Mondamin weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 31° | 12° | 0.7" | 7.9" | 5 | 20 | 14° – 35° |
| February | 36° | 17° | 0.9" | 6.4" | 6 | 17 | 15° – 36° |
| March | 50° | 28° | 1.7" | 4.1" | 7 | 6 | 31° – 54° |
| April | 62° | 38° | 3.2" | 0.9" | 10 | 1 | 42° – 56° |
| May | 73° | 50° | 4.7" | 0 | 13 | 0 | 56° – 68° |
| June | 83° | 61° | 4.7" | 0 | 10 | 0 | 68° – 77° |
| July | 86° | 65° | 3.4" | 0 | 9 | 0 | 70° – 82° |
| August | 84° | 62° | 3.9" | 0 | 9 | 0 | 68° – 77° |
| September | 78° | 53° | 3.3" | 0 | 8 | 0 | 59° – 71° |
| October | 65° | 40° | 2.3" | 0.6" | 7 | 0 | 45° – 57° |
| November | 49° | 27° | 1.3" | 2.2" | 5 | 3 | 29° – 49° |
| December | 35° | 17° | 1.2" | 6.6" | 6 | 12 | 13° – 32° |
| Year | 61° | 39° | 31.1" | 28.7" | 93 | 57 |
Heating and cooling a home in Mondamin
86% of the work is heating, so the furnace matters far more than the air conditioner.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 31° to 54°. June is the most reliable, staying within 9°.
Common questions about Mondamin’s climate
What is the coldest month in Mondamin?
January, with a typical high of 31° and a low of 12°.
What is the hottest month in Mondamin?
July, with a typical high of 86° and a low of 65°. About 33 days a year reach 90°.
How much snow does Mondamin get?
About 29 inches in a normal winter, most of it in January.
When is the first frost in Mondamin?
In half of years the first 32° night comes by October 8, and the last spring frost by April 23.
What is the rainiest month in Mondamin?
May, with 4.7 inches of rain and melted snow. The year totals 31 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Mondamin.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mondamin itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Logan, IA (13 mi, snow) and Tekamah Municipal Airport, NE (9 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Today’s forecast: National Weather Service.