September
September · August · June
81climate match
United States · 1991–2020
Best time to visit
Galena.
September leads for comfortable weather in Galena: typically 24.2°C by day, 10.8°C at night, with 90 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high24.2°C
Typical low10.8°C
Rain in September90 mm
July
July · August · June
69climate match
May
May · September · October
72climate match
The weakest month is January, scoring 5 against September’s 81 — days reach only -1.9°C, 26° 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
5-1.9° / -11.5°
Feb
50.6° / -9.8°
Mar
67.4° / -3.6°
Apr
3414.9° / 2.5°
May
6421.6° / 8.7°
Jun
6827.1° / 14.4°
Jul
6529.1° / 16.6°
Aug
7328° / 15.6°
Sep
8124.2° / 10.8°
Oct
4816.9° / 4.4°
Nov
118.2° / -2°
Dec
51.1° / -7.7°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -1.9°C | -11.5°C | 33 mm | 5.9 | 9 h 23 | 5 | Strong coverage |
| February | 0.6°C | -9.8°C | 39 mm | 5.7 | 10 h 29 | 5 | Strong coverage |
| March | 7.4°C | -3.6°C | 54 mm | 6.4 | 11 h 48 | 6 | Strong coverage |
| April | 14.9°C | 2.5°C | 95 mm | 8.7 | 13 h 18 | 34 | Strong coverage |
| May | 21.6°C | 8.7°C | 106 mm | 10.3 | 14 h 34 | 64 | Strong coverage |
| June | 27.1°C | 14.4°C | 140 mm | 9.6 | 15 h 16 | 68 | Strong coverage |
| July | 29.1°C | 16.6°C | 113 mm | 7.8 | 15 h | 65 | Strong coverage |
| August | 28°C | 15.6°C | 98 mm | 7.2 | 13 h 54 | 73 | Strong coverage |
| September | 24.2°C | 10.8°C | 90 mm | 6.9 | 12 h 26 | 81 | Strong coverage |
| October | 16.9°C | 4.4°C | 79 mm | 6.8 | 10 h 59 | 48 | Strong coverage |
| November | 8.2°C | -2°C | 60 mm | 6.2 | 9 h 43 | 11 | Strong coverage |
| December | 1.1°C | -7.7°C | 46 mm | 6.4 | 9 h 05 | 5 | Strong coverage |
What has changed
Galena runs +0.5°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
+0.6
Feb
0.0
Mar
+1.2
Apr
-0.8
May
-0.1
Jun
+0.5
Jul
+0.3
Aug
+0.4
Sep
+1.5
Oct
+0.3
Nov
+0.4
Dec
+2.0
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 17.2°C27 Jan 1944 | -37.2°C17 Jan 2009 | 46 mm12 Jan 1960 | 124 mm1960 · driest 2 mm in 1981 | 86 |
| February | 23.3°C23 Feb 2017 | -36.7°C4 Feb 1996 | 51 mm28 Feb 1948 | 92 mm2008 · driest 0 mm in 1987 | 86 |
| March | 30.6°C30 Mar 1986 | -30.6°C1 Mar 2015 | 59 mm31 Mar 1998 | 135 mm1991 · driest 9 mm in 1981 | 86 |
| April | 34.4°C22 Apr 1980 | -15.0°C7 Apr 1982 | 89 mm18 Apr 2013 | 201 mm2013 · driest 11 mm in 1946 | 86 |
| May | 35.0°C13 May 2022 | -5.0°C4 May 2005 | 68 mm7 May 1960 | 210 mm1974 · driest 18 mm in 1992 | 86 |
| June | 37.8°C22 Jun 1988 | 1.7°C11 Jun 1972 | 85 mm12 Jun 2015 | 273 mm1969 · driest 16 mm in 1988 | 85 |
| July | 39.4°C7 Jul 2012 | 5.0°C5 Jul 1972 | 114 mm28 Jul 2011 | 255 mm2025 · driest 8 mm in 2012 | 86 |
| August | 39.4°C18 Aug 1988 | 0.0°C30 Aug 1986 | 116 mm22 Aug 2002 | 249 mm1981 · driest 19 mm in 1969 | 85 |
| September | 37.2°C7 Sep 1985 | -4.4°C28 Sep 1942 | 103 mm13 Sep 1961 | 271 mm1986 · driest 3 mm in 1979 | 85 |
| October | 35.0°C4 Oct 1997 | -10.0°C29 Oct 1952 | 84 mm19 Oct 1984 | 228 mm1984 · driest 0 mm in 1964 | 85 |
| November | 25.0°C9 Nov 1999 | -22.8°C26 Nov 1977 | 66 mm17 Nov 1952 | 146 mm1985 · driest 3 mm in 1976 | 84 |
| December | 22.2°C16 Dec 2021 | -32.2°C27 Dec 1950 | 57 mm14 Dec 2015 | 145 mm2015 · driest 3 mm in 1995 | 84 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | 1 | 5 |
| February | 0 | 0 | 26 | 1 | 4 |
| March | <1 | 0 | 23 | 2 | 2 |
| April | 2 | <1 | 9 | 3 | <1 |
| May | 10 | 2 | 1 | 4 | 0 |
| June | 22 | 9 | 0 | 5 | 0 |
| July | 27 | 13 | 0 | 3 | 0 |
| August | 26 | 10 | 0 | 3 | 0 |
| September | 15 | 5 | <1 | 3 | 0 |
| October | 3 | <1 | 7 | 3 | <1 |
| November | 0 | 0 | 20 | 2 | <1 |
| December | 0 | 0 | 27 | 1 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 18% | 3% | 14% | -5.0–1.7°C |
| February | <1% | 17% | 3% | 13% | -3.2–4.8°C |
| March | 4% | 23% | 6% | 24% | 3.9–10.9°C |
| April | 19% | 29% | 10% | 36% | 12.2–18.5°C |
| May | 46% | 31% | 11% | 38% | 19.2–24.3°C |
| June | 66% | 31% | 14% | 36% | 24.9–28.7°C |
| July | 75% | 25% | 11% | 25% | 27.3–31.0°C |
| August | 76% | 24% | 10% | 23% | 26.0–29.8°C |
| September | 64% | 23% | 9% | 24% | 22.0–26.2°C |
| October | 30% | 21% | 8% | 21% | 14.8–20.3°C |
| November | 4% | 20% | 7% | 17% | 4.3–11.1°C |
| December | 0% | 19% | 5% | 18% | -2.4–4.5°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 4893384
- NOAA station
- USC00130608 · BELLEVUE L/D 12
- Station distance
- 17.3 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude 42.42°, 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.