Collegeville St John's, Minnesota climate: Climate normals at a NOAA weather station
Collegeville St John's's normal year runs from 4°F January nights to 81°F July afternoons, with 31.0 inches of precipitation and 57 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.4°C, January lows of −16°C, July highs of 27°C, 788 mm of precipitation a year.
- NOAA stationCollegeville St John's
- Station IDUSC00211691
- Location45.58°N 94.39°W
- Elevation1,210 ft (369 m)
On October 23, the normal high in Collegeville St John's is 52°F and the normal low 35°F, and the chance of measurable rain or snow is 27%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Collegeville St John's.
- Jan 21° 4°
- Feb 26° 8°
- Mar 39° 20°
- Apr 54° 33°
- May 67° 46°
- Jun 77° 56°
- Jul 81° 61°
- Aug 78° 59°
- Sep 71° 51°
- Oct 56° 38°
- Nov 39° 24°
- Dec 26° 11°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Collegeville St John's each month?
July is the warmest month, with normal highs of 81°F; January the coldest, with normal lows of 4°F. The most precipitation falls in June (4.60 in), the least in January (0.82 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 21°F | 4°F | 12.3°F | 0.82 | 11.2 | 7 | <1 | 31 | 9 h |
| February | 26°F | 8°F | 17.0°F | 0.89 | 10.2 | 6 | <1 | 27 | 10 h 20 min |
| March | 39°F | 20°F | 29.5°F | 1.72 | 10.1 | 8 | <1 | 25 | 11 h 50 min |
| April | 54°F | 33°F | 43.6°F | 2.72 | 6.6 | 9 | <1 | 13 | 13 h 30 min |
| May | 67°F | 46°F | 56.6°F | 3.96 | 0.1 | 11 | 1 | 1 | 14 h 50 min |
| June | 77°F | 56°F | 66.3°F | 4.60 | 0.0 | 11 | 1 | <1 | 15 h 40 min |
| July | 81°F | 61°F | 70.9°F | 3.90 | 0.0 | 10 | 4 | <1 | 15 h 20 min |
| August | 78°F | 59°F | 68.6°F | 4.09 | 0.0 | 9 | 2 | <1 | 14 h 10 min |
| September | 71°F | 51°F | 60.6°F | 2.96 | 0.0 | 9 | 1 | <1 | 12 h 40 min |
| October | 56°F | 38°F | 46.8°F | 2.75 | 0.7 | 9 | <1 | 8 | 11 h |
| November | 39°F | 24°F | 31.5°F | 1.63 | 8.0 | 7 | <1 | 23 | 9 h 30 min |
| December | 26°F | 11°F | 18.3°F | 1.00 | 10.5 | 7 | <1 | 31 | 8 h 40 min |
| Year (annual) | 53°F | 34°F | 43.5°F | 31.04 | 57.4 | 103 | 9 | 159 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −6°C | −16°C | −10.9°C | 21 mm | 28 cm |
| February | −3°C | −13°C | −8.3°C | 23 mm | 26 cm |
| March | 4°C | −7°C | −1.4°C | 44 mm | 26 cm |
| April | 12°C | 1°C | 6.4°C | 69 mm | 17 cm |
| May | 20°C | 8°C | 13.7°C | 101 mm | 0 cm |
| June | 25°C | 13°C | 19.1°C | 117 mm | 0 cm |
| July | 27°C | 16°C | 21.6°C | 99 mm | 0 cm |
| August | 26°C | 15°C | 20.3°C | 104 mm | 0 cm |
| September | 21°C | 10°C | 15.9°C | 75 mm | 0 cm |
| October | 13°C | 3°C | 8.2°C | 70 mm | 2 cm |
| November | 4°C | −4°C | −0.3°C | 41 mm | 20 cm |
| December | −4°C | −12°C | −7.6°C | 25 mm | 27 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00211691; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
Which months are mildest at Collegeville St John's?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, August has the fewest days with rain (9).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00211691.
When is the last frost at Collegeville St John's?
In Collegeville St John's, the last spring frost (32°F) comes after May 3 in half of years and after May 17 in one year in ten; the first autumn frost comes before October 7 in half of years and before September 25 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 31 year in 10 after May 17; 9 in 10 after April 21
- First autumn frost, half of years before
- October 71 year in 10 before September 25; 9 in 10 before October 19
NOAA puts the median frost-free season at 155 days, and the season without a hard freeze (28°F) at 176 days.
A hard freeze (28°F) comes after April 24 in half of springs and before October 18 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Collegeville St John's in zone 4b in ZIP code 56321, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 4b: the coldest night of a typical year reaches −22°F (29 complete years).
Frost dates for every NOAA station in Minnesota · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00211691; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get at Collegeville St John's?
In a normal year in Collegeville St John's, 9 days a year reach 90°F, 159 nights fall to 32°F or colder and 103 days bring measurable precipitation.
- Days at 90°F or more
- 9a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 159a normal year
- Days that stay below freezing
- 79high of 32°F or less
- Days with 0.01 inch of precipitation
- 103a normal year
- Days with 1 inch of snow or more
- 16a normal year
The highest temperature in this station's record (since 1893) is 106°F, on July 10, 1936; the lowest is −39°F, on January 22, 1936.
The wettest calendar year on that record is 1977, with 44.95 in; the snowiest season is 1964–65, with 109.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00211691; records: ACIS (NOAA Regional Climate Centers), station USC00211691. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Collegeville St John's?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds at Collegeville St John's, 3.9 kWh per square metre a day. July is the sunniest month (82%) and December the cloudiest (61%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 1.8 |
| February | 81% | 3.0 |
| March | 72% | 3.8 |
| April | 70% | 4.8 |
| May | 69% | 5.5 |
| June | 74% | 6.1 |
| July | 82% | 6.5 |
| August | 80% | 5.4 |
| September | 76% | 4.1 |
| October | 69% | 2.6 |
| November | 67% | 1.7 |
| December | 61% | 1.2 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How many heating and cooling degree days does Collegeville St John's record?
A normal year at Collegeville St John's brings 8,305 heating degree days, 55% more than the median U.S. place (5,373), and 506 cooling degree days, 44% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,418 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,634 | 0 |
| February | 1,345 | 0 |
| March | 1,102 | 0 |
| April | 643 | 1 |
| May | 284 | 25 |
| June | 62 | 100 |
| July | 13 | 194 |
| August | 27 | 139 |
| September | 176 | 44 |
| October | 566 | 3 |
| November | 1,005 | 0 |
| December | 1,448 | 0 |
| Year (annual) | 8,305 | 506 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00211691. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Have recent years at Collegeville St John's been warmer than normal?
2025 averaged 45.0°F, 1.5°F above the 1991-2020 normal of 43.5°F. 3 of the 3 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 46.2°F | +2.7°F | 26.10 | 31.2 |
| 2023 | 46.0°F | +2.5°F | 27.52 | 84.3 |
| 2025 | 45.0°F | +1.5°F | 31.58 | 49.7 |
Over 107 complete years from 1893 to 2025, the station's annual mean temperature rose at a fitted 2.6°F per century (+0.14°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00211691; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Collegeville St John's's climate compare?
Collegeville St John's is warmer than 66 of the 129 places with their own NOAA record in Minnesota, and wetter than 72. Across the 7,247 U.S. stations with normals, its annual mean of 43.5°F is warmer than 14%.
In the Köppen classification computed from these normals, Collegeville St John's is Dfb: continental, no dry season, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Collegeville St John's share this climate record?
10 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Sartell, MN19,979 people · 9 mi E
- Waite Park, MN8,504 people · 8 mi SE
- St. Joseph, MN6,992 people · 4 mi E
- Cold Spring, MN4,326 people · 9 mi S
- Albany, MN2,874 people · 9 mi W
- Avon, MN1,742 people · 3 mi NW
- St. John's University, MN1,615 people · 0 mi N
- Richmond, MN1,521 people · 10 mi SW
- Holdingford, MN746 people · 11 mi N
- Roscoe, MN134 people · 16 mi SW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Collegeville St John's's climate
What is the coldest month at Collegeville St John's?
January, with a normal high of 21°F and a normal low of 4°F. The warmest is July (81°F by day, 61°F at night).
Does it snow at Collegeville St John's?
Yes: 57 inches in a normal year, falling on 32 days with 0.1 inch or more, the most in January (11.2 inches).
What is the rainiest month at Collegeville St John's?
June, with 4.60 in of precipitation in a normal year; the driest is January with 0.82 in.
What plant hardiness zone is Collegeville St John's in?
The USDA's 2023 map puts Collegeville St John's in zone 4b in ZIP code 56321, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −22°F (29 years, 1991-2020): zone 4b.
How late can frost come at Collegeville St John's?
In half of years the last 32°F night comes after May 3; in one year in ten it comes after May 17. Waiting until May 17 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Minnesota climateThe statewide normals and every place in the state
- Rice, MN15 miles from this station, 41.6°F a year
- Kimball, MN16 miles from this station, 42.5°F a year
- St. Cloud, MN17 miles from this station, 42.9°F a year
- Melrose, MN21 miles from this station, 42.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made