Rock Falls sits near the bottom of U.S. towns for winter warmth
High summer brings afternoon highs near 82°. June is the wettest month here, with about 4.7 times the rain of January. It is a dry place: less rain and snow fall here than on 79% of U.S. towns. Warm coats and heating bills mark the months from October to April, when means dip under 50°.
A year in Rock Falls at a glance
Each month’s typical high and low, and what it brings.
What stands out about Rock Falls’ climate
Compared with towns across the U.S., with Rock Falls’ place in Wisconsin beside it.
What a year in Rock Falls feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 144 frost-free days a year
In half of years the last 32° night comes by May 10 and the first by October 2. Frost and day counts come from NOAA’s station at Mondovi, WI, 11 miles from the town’s center, at about the same height.
The 2023 USDA map puts Rock Falls’ center in zone 4b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −21°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 55 inches of snow a winter
Snow, measured at Eau Claire Rgnl Airport, falls mostly in January. Precipitation (rain plus melted snow) adds up to 34 inches a year; June is the wettest month and January the driest. Rain or snow falls on about 128 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Rock Falls
91% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Mondovi, WI.
Living with Rock Falls’ climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
144 frost-free days in zone 4b. The last frost comes by May 10 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 2.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 0.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Rock Falls from natural hazards, river flooding is the largest share (43%); heat waves, cold waves, winter storms and ice storms together are 25%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Rock Falls and similar climates
TownRatings has no climate map of the towns around Rock Falls yet.
Climates most like Rock Falls’, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Rock Falls, WI | 6° | 82° | 34" | 55" |
| Fairmont, MN | 7° | 83° | 32" | 47" |
| Plattsburgh, NY | 9° | 81° | 35" | 50" |
| Spirit Lake, IA | 7° | 83° | 31" | 42" |
| Hanover, NH | 9° | 82° | 39" | 61" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Rock Falls averaged 1.4° warmer than the 1900s. The biggest change is in December (+3.2°).
A bigger shift than in 52% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Rock Falls compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Rock Falls’ place among Wisconsin’s.
Rock Falls weather by month
Highs, lows and precipitation from NOAA’s grid at Rock Falls’ center; snow, wet days and snow on the ground from Eau Claire Rgnl Airport. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 24° | 6° | 1.1" | 13.5" | 11 | 27 | 3° – 28° |
| February | 29° | 9° | 1.1" | 11.2" | 8 | 26 | 7° – 31° |
| March | 42° | 21° | 1.9" | 9.6" | 10 | 18 | 24° – 48° |
| April | 57° | 33° | 3.2" | 4.3" | 12 | 3 | 35° – 52° |
| May | 69° | 45° | 4.2" | 0.4" | 13 | 0 | 52° – 65° |
| June | 79° | 55° | 4.9" | 0.0" | 12 | 0 | 62° – 71° |
| July | 82° | 60° | 3.8" | 0.0" | 11 | 0 | 65° – 77° |
| August | 80° | 58° | 4.3" | 0.0" | 10 | 0 | 64° – 74° |
| September | 72° | 49° | 3.7" | 0.0" | 11 | 0 | 53° – 66° |
| October | 59° | 37° | 2.7" | 0.7" | 10 | 0 | 42° – 53° |
| November | 42° | 25° | 1.9" | 4.7" | 9 | 5 | 25° – 44° |
| December | 29° | 13° | 1.3" | 11.0" | 10 | 21 | 6° – 31° |
| Year | 55° | 34° | 34.1" | 55.4" | 128 | 99 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 6° to 31°. June is the most reliable, staying within 9°.
Where Rock Falls’ numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Rock Falls’ center.
- Snow: Eau Claire Rgnl Airport.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Mondovi, WI, 11 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Rock Falls’ climate
What is the weather like in Rock Falls?
A typical July afternoon reaches 82°, a January night drops to 6°, and about 55 inches of snow falls in a normal winter. Colder January nights than 98% of U.S. towns; cooler July afternoons than 78% of U.S. towns.
How cold does it get in Rock Falls in winter?
January nights average 6°. About 163 nights a year reach 32° or below and 27 reach 0° or below. In the coldest January of the last 30 years the month averaged 3°.
How much snow does Rock Falls get?
About 55 inches in a normal winter at Eau Claire Rgnl Airport, most of it in January, with snow on the ground about 99 days a year.
How hot does it get in Rock Falls?
July, with a typical high of 82° and a low of 60°. About 15 days a year reach 90° (Mondovi, WI).
When is the first and last frost in Rock Falls?
In half of years the last spring frost (32°) comes by May 10 and the first fall frost by October 2, about 144 frost-free days, at Mondovi, WI.
What growing zone is Rock Falls in?
Zone 4b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −21°.
What is the best time of year to visit Rock Falls?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Rock Falls getting warmer?
Yes: 1991–2020 averaged 1.4° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 52% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Rock Falls.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.