September
September · August · June
77climate match
United States · 1991–2020
Best time to visit
Stillwater.
September leads for comfortable weather in Stillwater: typically 23.9°C by day, 11°C at night, with 107 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high23.9°C
Typical low11°C
Rain in September107 mm
August
August · July · June
62climate match
May
May · September · October
68climate match
The weakest month is January, scoring 5 against September’s 77 — days reach only 0°C, 24° below the 24°C the score treats as ideal.
Month by month
The whole year,
without the guesswork.
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
Jan
50° / -9.9°
Feb
51.9° / -9°
Mar
57.2° / -4.2°
Apr
3415.7° / 2.1°
May
6722.5° / 8.3°
Jun
6826.6° / 13.3°
Jul
6328.8° / 16°
Aug
7227.8° / 15.1°
Sep
7723.9° / 11°
Oct
4016.7° / 4.7°
Nov
99.1° / -0.8°
Dec
52.8° / -5.8°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 0°C | -9.9°C | 82 mm | 10 | 9 h 20 | 5 | Strong coverage |
| February | 1.9°C | -9°C | 71 mm | 8.1 | 10 h 27 | 5 | Strong coverage |
| March | 7.2°C | -4.2°C | 85 mm | 8.8 | 11 h 47 | 5 | Strong coverage |
| April | 15.7°C | 2.1°C | 99 mm | 10.2 | 13 h 20 | 34 | Strong coverage |
| May | 22.5°C | 8.3°C | 98 mm | 11.3 | 14 h 37 | 67 | Strong coverage |
| June | 26.6°C | 13.3°C | 128 mm | 11.2 | 15 h 20 | 68 | Strong coverage |
| July | 28.8°C | 16°C | 128 mm | 10.6 | 15 h 03 | 63 | Strong coverage |
| August | 27.8°C | 15.1°C | 101 mm | 9.1 | 13 h 56 | 72 | Strong coverage |
| September | 23.9°C | 11°C | 107 mm | 9 | 12 h 26 | 77 | Strong coverage |
| October | 16.7°C | 4.7°C | 110 mm | 10.3 | 10 h 58 | 40 | Strong coverage |
| November | 9.1°C | -0.8°C | 92 mm | 8.9 | 9 h 40 | 9 | Strong coverage |
| December | 2.8°C | -5.8°C | 99 mm | 9.9 | 9 h 02 | 5 | Strong coverage |
What has changed
Stillwater runs +1.2°C
on the 1961–1990 baseline.
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
Jan
+1.5
Feb
+1.8
Mar
+1.0
Apr
+1.1
May
+1.7
Jun
+0.5
Jul
+1.0
Aug
+0.7
Sep
+1.7
Oct
+1.4
Nov
+0.6
Dec
+1.9
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 19.4°C6 Jan 2007 | -36.1°C27 Jan 1994 | 61 mm8 Jan 1998 | 169 mm1998 · driest 12 mm in 1980 | 71 |
| February | 20.0°C24 Feb 2017 | -33.9°C18 Feb 1979 | 50 mm14 Feb 2007 | 159 mm2008 · driest 2 mm in 1987 | 71 |
| March | 31.1°C31 Mar 1998 | -25.0°C2 Mar 1962 | 79 mm13 Mar 1977 | 184 mm1977 · driest 11 mm in 1981 | 70 |
| April | 33.3°C29 Apr 1990 | -15.0°C1 Apr 1965 | 79 mm23 Apr 2006 | 212 mm1983 · driest 16 mm in 1999 | 70 |
| May | 35.6°C27 May 2010 | -6.1°C8 May 1956 | 69 mm24 May 2004 | 247 mm1984 · driest 17 mm in 1982 | 69 |
| June | 37.2°C30 Jun 1964 | 0.0°C5 Jun 1964 | 106 mm26 Jun 1966 | 228 mm2006 · driest 8 mm in 1964 | 71 |
| July | 37.2°C22 Jul 2011 | 2.8°C9 Jul 1963 | 80 mm27 Jul 2008 | 266 mm2008 · driest 11 mm in 1983 | 70 |
| August | 35.6°C2 Aug 1975 | -0.6°C31 Aug 1965 | 107 mm28 Aug 2011 | 240 mm2011 · driest 26 mm in 2025 | 70 |
| September | 34.4°C5 Sep 1973 | -5.6°C24 Sep 1963 | 90 mm17 Sep 1999 | 227 mm2011 · driest 6 mm in 1964 | 70 |
| October | 31.1°C7 Oct 1963 | -10.0°C8 Oct 1964 | 120 mm1 Oct 2010 | 219 mm2005 · driest 10 mm in 1963 | 70 |
| November | 27.8°C2 Nov 1982 | -18.3°C23 Nov 2018 | 67 mm9 Nov 1972 | 204 mm1972 · driest 22 mm in 2012 | 69 |
| December | 20.6°C24 Dec 2015 | -30.6°C21 Dec 1955 | 54 mm17 Dec 2000 | 177 mm2008 · driest 23 mm in 1960 | 71 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | 3 | 8 |
| February | 0 | 0 | 26 | 2 | 7 |
| March | <1 | <1 | 24 | 3 | 5 |
| April | 3 | <1 | 12 | 3 | 1 |
| May | 10 | 3 | 1 | 3 | 0 |
| June | 21 | 6 | 0 | 4 | 0 |
| July | 28 | 11 | 0 | 4 | 0 |
| August | 26 | 8 | 0 | 3 | 0 |
| September | 13 | 2 | <1 | 3 | 0 |
| October | 2 | 0 | 7 | 3 | <1 |
| November | 0 | 0 | 18 | 3 | 2 |
| December | 0 | 0 | 27 | 4 | 5 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 29% | 8% | 32% | -3.4–2.6°C |
| February | <1% | 26% | 8% | 28% | -1.4–4.7°C |
| March | 3% | 27% | 9% | 34% | 4.5–10.3°C |
| April | 18% | 33% | 11% | 41% | 12.8–18.2°C |
| May | 49% | 33% | 11% | 43% | 19.5–24.8°C |
| June | 64% | 34% | 12% | 45% | 24.8–28.3°C |
| July | 69% | 31% | 12% | 38% | 27.1–30.5°C |
| August | 72% | 29% | 10% | 31% | 26.2–29.1°C |
| September | 59% | 28% | 10% | 32% | 21.4–25.5°C |
| October | 22% | 28% | 10% | 31% | 14.4–18.7°C |
| November | 2% | 31% | 11% | 36% | 6.5–12.0°C |
| December | 0% | 31% | 11% | 37% | -0.7–5.4°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page
Nearby, measured,
and named.
- Place identity
- GeoNames 5139732
- NOAA station
- USC00307484 · SARATOGA SPRINGS 4 SW
- Station distance
- 17.8 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 28 usable years
- Daylight
- Calculated from latitude 42.94°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.