Few U.S. towns have colder winter nights than Vienna Township
Sunny July days climb to about 83°. By precipitation alone, it ranks drier than 86% of U.S. towns. Since 1901–2000, the year has warmed by 1.0°, most of all in January. Homes need heating from October to April, the months averaging under 50°.
A year in Vienna Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Vienna Township’s climate
Compared with towns across the U.S., with Vienna Township’s place in Minnesota beside it.
What a year in Vienna Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 156 frost-free days a year
In half of years the last 32° night comes by May 1 and the first by October 4. Frost and day counts come from NOAA’s station at Rock Rapids, IA, 20 miles from the town’s center, 170 ft lower.
The 2023 USDA map puts Vienna Township’s center in zone 5a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −20°. 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 35 inches of snow a winter
Snow, measured at Rock Rapids, IA, falls mostly in December. Precipitation (rain plus melted snow) adds up to 28 inches a year; June is the wettest month and January the driest. Rain or snow falls on about 86 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Vienna Township
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 Rock Rapids, IA.
Living with Vienna Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
156 frost-free days in zone 5a. The last frost comes by May 1 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 4.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 0.3 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Vienna Township from natural hazards, river flooding is the largest share (36%); heat waves, cold waves, winter storms and ice storms together are 13%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Vienna Township and its neighbors
Every town next door is within a degree of Vienna Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Vienna Township’s, 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 |
|---|---|---|---|---|
| Vienna Township, MN | 6° | 83° | 28" | 35" |
| Berlin, WI | 9° | 82° | 33" | 38" |
| Aberdeen, SD | 3° | 84° | 22" | 43" |
| Wahpeton, ND | 1° | 82° | 25" | 50" |
| Mason City, IA | 8° | 82° | 36" | 44" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Vienna Township averaged 1.0° warmer than the 1900s. The biggest change is in January (+2.6°).
A smaller shift than in 79% 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 Vienna Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Vienna Township’s place among Minnesota’s.
Vienna Township weather by month
Highs, lows and precipitation from NOAA’s grid at Vienna Township’s center; snow, wet days and snow on the ground from Rock Rapids, IA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 24° | 6° | 0.7" | 6.0" | 5 | 26 | 4° – 29° |
| February | 29° | 10° | 0.8" | 7.3" | 5 | 21 | 7° – 32° |
| March | 42° | 22° | 1.4" | 5.6" | 6 | 12 | 22° – 47° |
| April | 57° | 33° | 2.8" | 3.5" | 9 | 2 | 34° – 53° |
| May | 69° | 46° | 3.9" | 0.1" | 12 | 0 | 52° – 64° |
| June | 79° | 57° | 4.7" | 0.0" | 11 | 0 | 63° – 72° |
| July | 83° | 61° | 3.5" | 0.0" | 8 | 0 | 64° – 78° |
| August | 80° | 58° | 3.1" | 0.0" | 9 | 0 | 64° – 74° |
| September | 73° | 49° | 3.2" | 0.0" | 7 | 0 | 55° – 66° |
| October | 59° | 36° | 2.1" | 0.4" | 7 | 1 | 41° – 53° |
| November | 43° | 23° | 1.2" | 3.6" | 5 | 4 | 23° – 44° |
| December | 29° | 12° | 0.8" | 8.4" | 5 | 20 | 6° – 27° |
| Year | 56° | 34° | 28.0" | 34.9" | 86 | 86 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 22° to 47°. June is the most reliable, staying within 9°.
Where Vienna Township’s 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 Vienna Township’s center.
- Snow: Rock Rapids, IA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Rock Rapids, IA, 20 miles from the town’s center, 170 ft lower; 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 Vienna Township’s climate
What is the weather like in Vienna Township?
A typical July afternoon reaches 83°, a January night drops to 6°, and about 35 inches of snow falls in a normal winter. Colder January nights than 97% of U.S. towns; cooler July afternoons than 72% of U.S. towns.
How cold does it get in Vienna Township in winter?
January nights average 6°. About 169 nights a year reach 32° or below and 28 reach 0° or below. In the coldest January of the last 30 years the month averaged 4°.
How much snow does Vienna Township get?
About 35 inches in a normal winter at Rock Rapids, IA, most of it in December, with snow on the ground about 86 days a year.
How hot does it get in Vienna Township?
July, with a typical high of 83° and a low of 61°. About 19 days a year reach 90° (Rock Rapids, IA).
When is the first and last frost in Vienna Township?
In half of years the last spring frost (32°) comes by May 1 and the first fall frost by October 4, about 156 frost-free days, at Rock Rapids, IA.
What growing zone is Vienna Township in?
Zone 5a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −20°.
What is the best time of year to visit Vienna Township?
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 Vienna Township getting warmer?
Yes: 1991–2020 averaged 1.0° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 79% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Vienna Township.
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.