Granite Falls, MN Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Granite Falls's primary NOAA station, GRANITE FALLS.
The climate verdict for Granite Falls
Winter sets the terms in Granite Falls, Minnesota. A pronounced 59°F seasonal swing and heating demand above twice the cooling total frame an annual average of 45°F. At 44/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 10% of scores.
- 45°F
- yearly average temperature, NOAA normal
- 44/100
- comfort score, above 10% of station-mapped location scores
- 28.6"
- annual precipitation · 52" snow
- 150 days
- growing season, frost-free days
Granite Falls: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00213311 · Granite Falls, MN 45°F mean · 28.6" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 45°F
- RANK-COOL #1,235
- PHOTO-FINISH ≈ Madison
- PRCP-MID 28.6"
- SWING-WIDE 59°F
- COMF-LOW 44/100
- LOAD-HEAT 8,003 HDD
- STN-1 USC00213311
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Madison, SD (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every MN station list.
- Granite Falls (this station) 45°F
- Cold Waseca S Rsch &…, MN 45°F
- Hot U of MN St Paul, MN 45°F
- Near Madison, SD 45°F
- Near Tracy, MN 45°F
Granite Falls sits in Minnesota, the #3 coldest U.S. state at 42.2°F statewide annual average - see all 50 coldest states ranked by NOAA normals
Climate Living Index · Granite Falls
Granite Falls: 33/100 · grade F
Granite Falls publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Granite Falls, not an official NOAA rating. Rankings still use Comfort Score 44/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 28.6 in · 6.4 from 35 in | 77/100 · B |
| Normal heat + freeze calendar | 173 calendar days | 30/100 · F |
| Frost-free season | 150 days/year | 25/100 · F |
| Snowfall burden | 51.5 inches/year | 20/100 · F |
| Annual temperature balance | 44.7°F · 22.8° from 67.5°F | 19/100 · F |
Granite Falls · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Granite Falls is a continental Köppen climate: Dfa
Coldest-month mean 13.4°F and warmest-month mean 72.4°F place this station in continental, no dry season, hot summer climates (Dfa). Class Dfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, hot summer.
- Köppen code
- Dfa
- Group
- Continental
- Warmest month
- 72.4°F
- Coldest month
- 13.4°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Granite Falls sits across the climate record
Three NOAA fields for Granite Falls's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 82%
- Among 6,861 stations, Granite Falls sits in the cooler third of annual means.
- Annual precipitation
- 38th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Wider than 97%
- Warmest-to-coldest month gap for Granite Falls is large versus 6,861 complete station-years.
How Granite Falls compares across U.S. station-mapped locations
Granite Falls's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
44 10th percentile score exceeds 10% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). This entry sits in this band.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 24°F (-4°C) | 3°F (-16°C) | 13°F (-10°C) | 0.8" | 9.4" | 30.9 | 0.0 |
| February | 29°F (-2°C) | 7°F (-14°C) | 18°F (-8°C) | 0.8" | 11.7" | 27.8 | 0.0 |
| March | 42°F (6°C) | 20°F (-7°C) | 31°F (-1°C) | 1.5" | 7.9" | 25.8 | 0.0 |
| April | 57°F (14°C) | 33°F (0°C) | 45°F (7°C) | 2.4" | 3.9" | 15.8 | 0.1 |
| May | 71°F (22°C) | 45°F (7°C) | 58°F (14°C) | 3.5" | 0.1" | 2.1 | 1.7 |
| June | 80°F (27°C) | 55°F (13°C) | 68°F (20°C) | 4.6" | 0.0" | 0.0 | 3.7 |
| July | 85°F (29°C) | 60°F (15°C) | 72°F (22°C) | 3.3" | 0.0" | 0.0 | 7.9 |
| August | 82°F (28°C) | 58°F (14°C) | 70°F (21°C) | 3.8" | 0.0" | 0.0 | 4.1 |
| September | 75°F (24°C) | 48°F (9°C) | 62°F (16°C) | 3.2" | 0.0" | 0.9 | 2.1 |
| October | 60°F (15°C) | 35°F (2°C) | 48°F (9°C) | 2.4" | 0.8" | 11.8 | 0.4 |
| November | 43°F (6°C) | 22°F (-5°C) | 33°F (0°C) | 1.4" | 6.6" | 25.0 | 0.0 |
| December | 29°F (-2°C) | 10°F (-12°C) | 19°F (-7°C) | 1.1" | 11.1" | 30.5 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 86°F around July 14, short of 90°F on every date, while 173 dates carry a normal low at or below freezing, the coldest 2°F near January 18.
The freezing stretch
The normal low stays at or below 32°F into April 13, then returns to freezing around October 24, covering 173 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is June 9, when 35% of years recorded at least a hundredth of an inch. The driest is November 21 at 16%. Summed across the calendar, that is about 85 wet dates a year.
The widest day
September 17 carries the biggest normal gap between afternoon and dawn, 28°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Granite Falls.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 9.4"
5.9 days with precipitation
Snow: 11.7"
5.3 days with precipitation
Snow: 7.9"
5.9 days with precipitation
Snow: 3.9"
7.3 days with precipitation
Snow: 0.1"
9.4 days with precipitation
10.4 days with precipitation
7.9 days with precipitation
7.7 days with precipitation
7.3 days with precipitation
Snow: 0.8"
7.3 days with precipitation
Snow: 6.6"
4.6 days with precipitation
Snow: 11.1"
5.5 days with precipitation
Granite Falls runs a summer-peaked wet season
41% of Granite Falls's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is June at 4.6", on a wide 59°F gap between its warmest and coldest month. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: June, August, May, taking 41% of the annual total between them.
- Driest month: January at 0.8".
- Winter share: 9% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
How Granite Falls's precipitation splits across the calendar
About 85 days a year record measurable precipitation here, carrying 28.6" between them, or roughly 0.34 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Winter brings real snow to Granite Falls
Granite Falls averages 51.5 inches of snowfall a year, with February the snowiest month on the normals, spread across roughly 24 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 51.5 inches of depth.
- Days recording measurable snow: about 24 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 18% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
October 1
50% probability date
Last Spring Freeze
May 4
50% probability date
Growing Season
150 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,003
Higher = more heating needed
Cooling Degree Days
629
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MN closest to Granite Falls on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (45°F here).
- Arlington, SD 45°F · 0.0°F off
- Buena Vista, CO 45°F · 0.0°F off
- Evergreen, CO 45°F · 0.0°F off
- Flagstaff, AZ 45°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (28.6" here), excluding temperature-peer places.
- Yankton, SD 28.7" · 0.0" off
- Columbus, NE 28.7" · 0.0" off
- Seward, NE 28.7" · 0.0" off
- Alton, KS 28.6" · 0.1" off
Snow and freeze rhythm
When cold and snow define Granite Falls
heating led · moderate · high swing
Winter and seasonal range jointly define this record. Granite Falls logs 8,003 heating degree days, more than twice its 629 cooling total, while the typical coldest-to-warmest-month gap reaches 59.0°F. The annual mean therefore compresses two materially different seasons.
Granite Falls's frost-free season lasts about 150 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Granite Falls coldest normal
January
Averaging 13°F (-10°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Granite Falls typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Granite Falls snow peak
February
Granite Falls averages 51.5 inches of snow a year, with February the snowiest month on the normals.
Questions about Granite Falls's climate
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Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Granite Falls's primary station: GRANITE FALLS (USC00213311). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 2725280). Match rule for Granite Falls: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Granite Falls comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.