September
September · June · August
84climate match
United States · 1991–2020
Best time to visit
Sand Bar Beach Resort and Trailer Court.
September leads for comfortable weather in Sand Bar Beach Resort and Trailer Court: typically 23.5°C by day, 12°C at night, with 83 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high23.5°C
Typical low12°C
Rain in September83 mm
July
July · August · June
77climate match
May
May · September · October
77climate match
The weakest month is January, scoring 5 against September’s 84 — days reach only -4°C, 28° 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
5-4° / -12.8°
Feb
5-2° / -11.4°
Mar
55.5° / -4.3°
Apr
3313.7° / 2.6°
May
6220.4° / 9.4°
Jun
7726.1° / 15.3°
Jul
6928.6° / 17.8°
Aug
7726.8° / 16.3°
Sep
8423.5° / 12°
Oct
4514.9° / 4.2°
Nov
116.9° / -2.9°
Dec
5-1.7° / -10.2°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -4°C | -12.8°C | 13 mm | 3 | 9 h 17 | 5 | Good coverage |
| February | -2°C | -11.4°C | 17 mm | 3.5 | 10 h 25 | 5 | Good coverage |
| March | 5.5°C | -4.3°C | 35 mm | 4.3 | 11 h 47 | 5 | Good coverage |
| April | 13.7°C | 2.6°C | 80 mm | 7.6 | 13 h 21 | 33 | Good coverage |
| May | 20.4°C | 9.4°C | 109 mm | 9.4 | 14 h 40 | 62 | Good coverage |
| June | 26.1°C | 15.3°C | 112 mm | 8.6 | 15 h 24 | 77 | Good coverage |
| July | 28.6°C | 17.8°C | 84 mm | 6.8 | 15 h 07 | 69 | Good coverage |
| August | 26.8°C | 16.3°C | 95 mm | 6.9 | 13 h 58 | 77 | Good coverage |
| September | 23.5°C | 12°C | 83 mm | 5.8 | 12 h 27 | 84 | Good coverage |
| October | 14.9°C | 4.2°C | 57 mm | 5.7 | 10 h 56 | 45 | Good coverage |
| November | 6.9°C | -2.9°C | 32 mm | 3.7 | 9 h 37 | 11 | Good coverage |
| December | -1.7°C | -10.2°C | 22 mm | 3.7 | 8 h 58 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 17.8°C26 Jan 2002 | -34.4°C25 Jan 1894 | 34 mm24 Jan 2017 | 47 mm2023 · driest 0 mm in 1899 | 41 |
| February | 21.1°C26 Feb 1896 | -39.4°C9 Feb 1899 | 36 mm28 Feb 2012 | 53 mm2012 · driest 1 mm in 2026 | 39 |
| March | 30.0°C22 Mar 2026 | -27.8°C14 Mar 1897 | 44 mm25 Mar 2024 | 82 mm2006 · driest 6 mm in 1998 | 38 |
| April | 34.4°C29 Apr 2007 | -15.0°C4 Apr 2018 | 60 mm15 Apr 2018 | 152 mm2019 · driest 17 mm in 1899 | 38 |
| May | 37.8°C28 May 2018 | -3.3°C3 May 1900 | 87 mm5 May 2007 | 331 mm1903 · driest 9 mm in 1900 | 39 |
| June | 39.4°C30 Jun 1894 | 0.6°C7 Jun 1901 | 111 mm22 Jun 2024 | 427 mm2024 · driest 38 mm in 1894 | 39 |
| July | 42.8°C26 Jul 1894 | 4.4°C9 Jul 1895 | 73 mm14 Jul 2011 | 238 mm2011 · driest 2 mm in 1894 | 40 |
| August | 40.0°C8 Aug 1894 | 4.4°C2 Aug 1904 | 129 mm18 Aug 2007 | 269 mm2017 · driest 21 mm in 2019 | 38 |
| September | 38.3°C18 Sep 1895 | -6.1°C29 Sep 1899 | 152 mm11 Sep 1900 | 294 mm2004 · driest 6 mm in 1999 | 39 |
| October | 35.0°C1 Oct 1897 | -11.1°C29 Oct 1893 | 94 mm1 Oct 2021 | 175 mm2021 · driest 8 mm in 2011 | 40 |
| November | 25.6°C8 Nov 2006 | -27.2°C22 Nov 1898 | 70 mm26 Nov 1896 | 138 mm2015 · driest 1 mm in 2023 | 40 |
| December | 18.3°C1 Dec 1998 | -32.8°C18 Dec 2016 | 34 mm12 Dec 2015 | 62 mm2018 · driest 1 mm in 1895 | 40 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | <1 | 3 |
| February | 0 | 0 | 26 | <1 | 4 |
| March | <1 | 0 | 23 | 1 | 2 |
| April | 2 | <1 | 9 | 3 | 1 |
| May | 8 | 2 | <1 | 4 | 0 |
| June | 19 | 7 | 0 | 4 | 0 |
| July | 27 | 12 | 0 | 3 | 0 |
| August | 22 | 6 | 0 | 3 | 0 |
| September | 13 | 3 | 0 | 2 | 0 |
| October | 2 | <1 | 7 | 2 | <1 |
| November | <1 | 0 | 20 | 1 | 1 |
| December | 0 | 0 | 29 | <1 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 10% | <1% | 4% | -6.8–-0.2°C |
| February | <1% | 11% | <1% | 4% | -6.9–3.5°C |
| March | 4% | 15% | 4% | 9% | 1.3–10.2°C |
| April | 21% | 25% | 9% | 28% | 11.0–16.8°C |
| May | 43% | 29% | 12% | 37% | 19.1–23.8°C |
| June | 68% | 29% | 13% | 32% | 24.3–28.3°C |
| July | 77% | 23% | 10% | 19% | 27.4–31.4°C |
| August | 78% | 22% | 10% | 16% | 25.8–30.0°C |
| September | 66% | 18% | 8% | 16% | 21.6–26.8°C |
| October | 28% | 16% | 6% | 11% | 12.2–19.6°C |
| November | 5% | 11% | 4% | 7% | 2.8–10.8°C |
| December | 0% | 11% | 2% | 5% | -5.2–2.6°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 4875498
- NOAA station
- USC00137859 · SPIRIT LAKE
- Station distance
- 9.9 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 22 usable years
- Daylight
- Calculated from latitude 43.49°, 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.