September
September · June · August
84climate match
United States · 1991–2020
Best time to visit
Four Seasons Trailer Court.
September leads for comfortable weather in Four Seasons Trailer Court: typically 24.3°C by day, 7.2°C at night, with 35 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high24.3°C
Typical low7.2°C
Rain in September35 mm
August
August · July · June
71climate match
September
September · May · June
80climate match
The weakest month is January, scoring 5 against September’s 84 — days reach only -3°C, 27° 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
5-3° / -14.4°
Feb
5-0.2° / -12.2°
Mar
77.5° / -6.4°
Apr
4315.6° / -0.4°
May
6721.5° / 5.7°
Jun
7726° / 10.9°
Jul
6930.4° / 13.9°
Aug
7430.1° / 12.6°
Sep
8424.3° / 7.2°
Oct
4315.1° / 0.6°
Nov
55.4° / -6.3°
Dec
5-1° / -12°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -3°C | -14.4°C | 12 mm | 3.3 | 8 h 49 | 5 | Strong coverage |
| February | -0.2°C | -12.2°C | 9 mm | 2.4 | 10 h 09 | 5 | Strong coverage |
| March | 7.5°C | -6.4°C | 14 mm | 3.4 | 11 h 44 | 7 | Strong coverage |
| April | 15.6°C | -0.4°C | 26 mm | 4.3 | 13 h 33 | 43 | Strong coverage |
| May | 21.5°C | 5.7°C | 60 mm | 7.7 | 15 h 06 | 67 | Strong coverage |
| June | 26°C | 10.9°C | 69 mm | 8.1 | 15 h 58 | 77 | Strong coverage |
| July | 30.4°C | 13.9°C | 66 mm | 6.8 | 15 h 38 | 69 | Strong coverage |
| August | 30.1°C | 12.6°C | 33 mm | 5.1 | 14 h 17 | 74 | Strong coverage |
| September | 24.3°C | 7.2°C | 35 mm | 4.5 | 12 h 30 | 84 | Strong coverage |
| October | 15.1°C | 0.6°C | 29 mm | 4.6 | 10 h 45 | 43 | Strong coverage |
| November | 5.4°C | -6.3°C | 13 mm | 2.7 | 9 h 12 | 5 | Strong coverage |
| December | -1°C | -12°C | 13 mm | 3.2 | 8 h 26 | 5 | Strong coverage |
What has changed
Four Seasons Trailer Court runs +1.5°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
+3.0
Feb
-0.1
Mar
+1.7
Apr
+0.5
May
+0.2
Jun
+0.8
Jul
+1.5
Aug
+2.0
Sep
+3.9
Oct
+0.3
Nov
+1.2
Dec
+2.5
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 16.1°C8 Jan 2002 | -43.9°C11 Jan 1912 | 18 mm16 Jan 1995 | 35 mm1967 · driest 0 mm in 1918 | 88 |
| February | 20.0°C27 Feb 1992 | -42.2°C2 Feb 1917 | 21 mm25 Feb 1998 | 42 mm1998 · driest 0 mm in 1913 | 87 |
| March | 27.2°C26 Mar 1999 | -33.9°C2 Mar 1916 | 38 mm17 Mar 2003 | 60 mm2003 · driest 0 mm in 1915 | 86 |
| April | 35.0°C20 Apr 1980 | -27.2°C1 Apr 1975 | 52 mm18 Apr 2006 | 96 mm1992 · driest 0 mm in 2005 | 88 |
| May | 38.9°C22 May 1980 | -8.9°C3 May 2005 | 62 mm10 May 2011 | 156 mm1978 · driest 1 mm in 1958 | 88 |
| June | 40.6°C7 Jun 1988 | -2.2°C8 Jun 1915 | 75 mm18 Jun 1973 | 165 mm1994 · driest 11 mm in 2016 | 87 |
| July | 43.3°C27 Jul 1917 | 1.7°C3 Jul 1967 | 70 mm1 Jul 2009 | 232 mm1993 · driest 0 mm in 2021 | 86 |
| August | 41.7°C12 Aug 2018 | -1.1°C31 Aug 1994 | 75 mm24 Aug 1914 | 115 mm2013 · driest 1 mm in 1970 | 85 |
| September | 38.3°C9 Sep 1994 | -9.4°C30 Sep 1961 | 74 mm8 Sep 1991 | 163 mm1991 · driest 1 mm in 1960 | 87 |
| October | 33.9°C1 Oct 2025 | -21.7°C26 Oct 1919 | 50 mm3 Oct 2023 | 100 mm1998 · driest 0 mm in 1963 | 88 |
| November | 25.0°C12 Nov 1999 | -31.1°C29 Nov 1985 | 41 mm1 Nov 2000 | 67 mm2000 · driest 0 mm in 1913 | 87 |
| December | 20.0°C4 Dec 1979 | -40.0°C23 Dec 1983 | 29 mm27 Dec 2016 | 34 mm2008 · driest 0 mm in 1997 | 87 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 5 |
| February | 0 | 0 | 28 | <1 | 4 |
| March | <1 | 0 | 27 | <1 | 3 |
| April | 3 | <1 | 16 | <1 | 1 |
| May | 10 | 2 | 4 | 2 | <1 |
| June | 18 | 6 | <1 | 2 | 0 |
| July | 28 | 18 | 0 | 2 | 0 |
| August | 27 | 17 | 0 | <1 | 0 |
| September | 14 | 6 | 2 | <1 | 0 |
| October | 3 | <1 | 13 | <1 | <1 |
| November | 0 | 0 | 26 | <1 | 2 |
| December | 0 | 0 | 30 | <1 | 5 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 10% | <1% | 5% | -9.9–1.6°C |
| February | <1% | 9% | <1% | 4% | -6.9–5.2°C |
| March | 4% | 11% | <1% | 6% | 0.9–12.1°C |
| April | 26% | 15% | 2% | 13% | 10.1–19.6°C |
| May | 52% | 23% | 5% | 26% | 18.1–24.9°C |
| June | 69% | 26% | 7% | 29% | 23.3–28.6°C |
| July | 79% | 20% | 5% | 17% | 27.0–32.7°C |
| August | 83% | 16% | 4% | 11% | 26.2–32.2°C |
| September | 65% | 16% | 3% | 12% | 19.4–27.1°C |
| October | 27% | 11% | 3% | 6% | 11.9–18.0°C |
| November | 2% | 10% | <1% | 6% | 0.4–10.0°C |
| December | 0% | 11% | <1% | 6% | -7.2–3.7°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 5653040
- NOAA station
- USC00247560 · SIDNEY
- Station distance
- 1.1 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 26 usable years
- Daylight
- Calculated from latitude 47.72°, 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.