September
September · June · May
74climate match
United States · 1991–2020
Best time to visit
Catherine.
September leads for comfortable weather in Catherine: typically 26.2°C by day, 6.7°C at night, with 44 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high26.2°C
Typical low6.7°C
Rain in September44 mm
July
July · August · June
65climate match
May
May · October · September
79climate match
The weakest month is January, scoring 5 against September’s 74 — days reach only 3°C, 21° below the 24°C the score treats as ideal, and nights drop to -10.1°C.
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
53° / -10.1°
Feb
56° / -7.1°
Mar
2712.3° / -2.9°
Apr
4616.4° / 0.4°
May
7021.9° / 4.3°
Jun
7228.4° / 8.2°
Jul
6732° / 12°
Aug
6930.6° / 11.2°
Sep
7426.2° / 6.7°
Oct
5518.7° / 0.7°
Nov
179.8° / -4.6°
Dec
53.1° / -9.3°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 3°C | -10.1°C | 31 mm | 6.5 | 9 h 40 | 5 | Strong coverage |
| February | 6°C | -7.1°C | 27 mm | 4.8 | 10 h 39 | 5 | Strong coverage |
| March | 12.3°C | -2.9°C | 29 mm | 4.9 | 11 h 49 | 27 | Strong coverage |
| April | 16.4°C | 0.4°C | 40 mm | 5.7 | 13 h 11 | 46 | Strong coverage |
| May | 21.9°C | 4.3°C | 46 mm | 5.8 | 14 h 19 | 70 | Strong coverage |
| June | 28.4°C | 8.2°C | 23 mm | 3.9 | 14 h 56 | 72 | Strong coverage |
| July | 32°C | 12°C | 24 mm | 4.1 | 14 h 41 | 67 | Strong coverage |
| August | 30.6°C | 11.2°C | 30 mm | 5.5 | 13 h 43 | 69 | Strong coverage |
| September | 26.2°C | 6.7°C | 44 mm | 5.4 | 12 h 24 | 74 | Strong coverage |
| October | 18.7°C | 0.7°C | 38 mm | 4.8 | 11 h 06 | 55 | Strong coverage |
| November | 9.8°C | -4.6°C | 26 mm | 4.5 | 9 h 57 | 17 | Strong coverage |
| December | 3.1°C | -9.3°C | 27 mm | 5.2 | 9 h 24 | 5 | Strong coverage |
What has changed
Catherine runs +0.2°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
+0.2
Feb
-0.8
Mar
+0.8
Apr
-0.9
May
-0.9
Jun
+0.5
Jul
+0.5
Aug
+0.5
Sep
+1.9
Oct
-0.7
Nov
+0.9
Dec
+0.3
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 15.6°C31 Jan 1911 | -38.9°C7 Jan 1913 | 33 mm19 Jan 1952 | 140 mm1952 · driest 0 mm in 2003 | 115 |
| February | 19.4°C25 Feb 1981 | -34.4°C13 Feb 1905 | 33 mm7 Feb 1967 | 131 mm1936 · driest 0 mm in 2013 | 116 |
| March | 26.1°C29 Mar 1943 | -23.3°C4 Mar 1966 | 34 mm11 Mar 1940 | 105 mm1912 · driest 0 mm in 2010 | 115 |
| April | 31.1°C25 Apr 1946 | -16.7°C5 Apr 1966 | 46 mm8 Apr 2018 | 146 mm1978 · driest 2 mm in 1992 | 116 |
| May | 35.0°C31 May 2002 | -8.3°C16 May 1916 | 53 mm26 May 2009 | 148 mm1995 · driest 0 mm in 2002 | 113 |
| June | 38.9°C23 Jun 1954 | -2.8°C8 Jun 1906 | 81 mm24 Jun 1969 | 125 mm1969 · driest 0 mm in 1906 | 116 |
| July | 38.9°C7 Jul 1989 | -1.1°C4 Jul 1903 | 46 mm28 Jul 1937 | 115 mm1937 · driest 0 mm in 2007 | 116 |
| August | 37.8°C8 Aug 1958 | -2.2°C31 Aug 1903 | 37 mm21 Aug 1970 | 100 mm1927 · driest 1 mm in 2020 | 115 |
| September | 37.8°C4 Sep 1924 | -6.7°C28 Sep 1907 | 49 mm4 Sep 1982 | 137 mm1961 · driest 1 mm in 1953 | 111 |
| October | 31.1°C4 Oct 1947 | -17.2°C31 Oct 2019 | 39 mm8 Oct 1985 | 107 mm1984 · driest 0 mm in 1952 | 113 |
| November | 23.9°C2 Nov 2014 | -22.8°C28 Nov 1911 | 29 mm10 Nov 2002 | 73 mm1986 · driest 0 mm in 2020 | 115 |
| December | 21.1°C14 Dec 2016 | -30.0°C27 Dec 1904 | 37 mm30 Dec 1951 | 113 mm1951 · driest 1 mm in 1923 | 116 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | <1 | 6 |
| February | 0 | 0 | 26 | <1 | 4 |
| March | 0 | 0 | 24 | <1 | 1 |
| April | 1 | 0 | 14 | 1 | <1 |
| May | 10 | 1 | 3 | 1 | 0 |
| June | 22 | 13 | <1 | <1 | 0 |
| July | 28 | 23 | 0 | <1 | 0 |
| August | 27 | 19 | 0 | <1 | 0 |
| September | 20 | 6 | 1 | 2 | 0 |
| October | 4 | <1 | 14 | 1 | <1 |
| November | 0 | 0 | 25 | <1 | 2 |
| December | 0 | 0 | 30 | <1 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 22% | 3% | 23% | -0.3–5.3°C |
| February | 0% | 21% | 3% | 23% | 2.4–8.7°C |
| March | 5% | 21% | 3% | 21% | 8.2–14.5°C |
| April | 30% | 22% | 4% | 22% | 13.4–19.6°C |
| May | 64% | 18% | 4% | 17% | 18.8–24.8°C |
| June | 84% | 14% | 2% | 12% | 25.5–30.6°C |
| July | 83% | 17% | 3% | 15% | 29.2–33.4°C |
| August | 78% | 22% | 3% | 22% | 28.3–32.0°C |
| September | 77% | 19% | 4% | 18% | 23.4–28.2°C |
| October | 48% | 17% | 4% | 14% | 16.1–21.8°C |
| November | 3% | 17% | 2% | 15% | 6.9–12.7°C |
| December | 0% | 20% | 3% | 21% | 0.6–6.0°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 5416412
- NOAA station
- USC00053359 · GLENWOOD SPGS #2
- Station distance
- 22.9 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 25 usable years
- Daylight
- Calculated from latitude 39.41°, 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.