St Paul, MN Climate: Temperature by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from St Paul's primary NOAA station, ST PAUL - 2 stations mapped to the area.
The climate verdict for St Paul
Winter sets the terms in St Paul, Minnesota. A pronounced 57.1°F seasonal swing and heating demand above twice the cooling total frame an annual average of 46°F. July is the warmest month at 73°F and January the coldest at 15°F.
- 46°F
- average temperature, NOAA 1991-2020 normal
- 169 days
- growing season, frost-free days
St Paul: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00217377 · St Paul, MN 46°F mean
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-UNK · SWING-WIDE · COMF-UNK · LOAD-HEAT · STN-MULTI · BOOK-PART
- TEMP-COOL 46°F
- RANK-COOL #1,441
- PHOTO-FINISH ≈ Shoshoni
- PRCP-UNK Rain n/a
- SWING-WIDE 57°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 7,683 HDD
- STN-MULTI USC00217377
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: Shoshoni, WY (+ 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.
- St Paul (this station) 46°F
- Hot Spirit Lake, IA 46°F
- Near Shoshoni, WY 46°F
- Near New Hope, MN 46°F
- Near Canton, SD 46°F
St Paul 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 · St Paul
St Paul: 34/100 · grade F
St Paul publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for St Paul, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 155 calendar days | 43/100 · D |
| Frost-free season | 169 days/year | 41/100 · D |
| Annual temperature balance | 45.6°F · 21.9° from 67.5°F | 22/100 · F |
St Paul · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where St Paul sits across the climate record
Available NOAA 1991–2020 fields for St Paul are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- Cooler than 79%
- Among 6,861 stations, St Paul sits in the cooler third of annual means.
- Seasonal temperature swing
- Wider than 95%
- Warmest-to-coldest month gap for St Paul is large versus 6,861 complete station-years.
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 23°F (-5°C) | 8°F (-13°C) | 15°F (-9°C) | N/A | 30.8 | 0.0 |
| February | 28°F (-2°C) | 11°F (-11°C) | 20°F (-7°C) | N/A | 26.4 | 0.0 |
| March | 41°F (5°C) | 23°F (-5°C) | 32°F (0°C) | N/A | 25.4 | 0.0 |
| April | 56°F (13°C) | 36°F (2°C) | 46°F (8°C) | N/A | 9.5 | 0.1 |
| May | 69°F (20°C) | 48°F (9°C) | 58°F (15°C) | N/A | 0.9 | 0.4 |
| June | 78°F (25°C) | 59°F (15°C) | 68°F (20°C) | N/A | 0.0 | 1.7 |
| July | 82°F (28°C) | 63°F (17°C) | 73°F (23°C) | N/A | 0.0 | 3.3 |
| August | 80°F (27°C) | 61°F (16°C) | 70°F (21°C) | N/A | 0.0 | 1.8 |
| September | 72°F (22°C) | 53°F (11°C) | 62°F (17°C) | N/A | 0.5 | 0.4 |
| October | 57°F (14°C) | 39°F (4°C) | 48°F (9°C) | N/A | 7.5 | 0.0 |
| November | 41°F (5°C) | 27°F (-3°C) | 34°F (1°C) | N/A | 22.8 | 0.0 |
| December | 28°F (-2°C) | 15°F (-10°C) | 21°F (-6°C) | N/A | 30.2 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 82°F around July 14, short of 90°F on every date, while 155 dates carry a normal low at or below freezing, the coldest 7°F near January 25.
The freezing stretch
The normal low stays at or below 32°F into April 6, then returns to freezing around November 4, covering 155 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.
The widest day
May 16 carries the biggest normal gap between afternoon and dawn, 20°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for St Paul.
Where St Paul Stands Nationally
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 20°F.
St Paul earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
Frost Dates & Growing Season
First Fall Freeze
October 12
50% probability date
Last Spring Freeze
April 26
50% probability date
Growing Season
169 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,683
Higher = more heating needed
Cooling Degree Days
669
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MN closest to St Paul 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 (46°F here).
- Appleton, WI 46°F · 0.0°F off
- Cobleskill, NY 46°F · 0.0°F off
- Downey, ID 46°F · 0.0°F off
- La Crosse, WI 46°F · 0.0°F off
Data-derived climate profile
How St Paul's climate pattern fits together
heating led · high swing
Winter and seasonal range jointly define this record. St Paul logs 7,683 heating degree days, more than twice its 669 cooling total, while the typical coldest-to-warmest-month gap reaches 57.1°F. The annual mean therefore compresses two materially different seasons.
St Paul's frost-free season lasts about 169 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
St Paul's calendar has a pronounced split: July and January mark the typical warm and cold ends of the calendar, with 57.1°F between them. The annual average is 46°F. That average is context, while the monthly highs, lows, and precipitation totals describe the lived parts of the year.
A moisture-range label is withheld because St Paul's annual precipitation total is unavailable. Monthly source values remain visible where NOAA provides them, and no annual amount is reconstructed from incomplete data.
These labels group NOAA 1991-2020 normals from St Paul's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for St Paul, not an official NOAA class or a year-ahead forecast.
Questions about St Paul's climate
How cold does St Paul get in winter? ▼
How much energy does heating and cooling require in St Paul? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from St Paul's primary station: ST PAUL (USC00217377). 2 NOAA stations are mapped to the St Paul area; the primary station's record is used for consistency. 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 2758000). Match rule for St Paul: 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 St Paul 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.