September
September · June · August
82climate match
United States · 1991–2020
Best time to visit
Brooklyn.
September leads for comfortable weather in Brooklyn: typically 23.8°C by day, 13.4°C at night, with 100 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high23.8°C
Typical low13.4°C
Rain in September100 mm
July
July · August · June
73climate match
May
May · October · September
76climate match
The weakest month is January, scoring 5 against September’s 82 — days reach only 1.6°C, 22° 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
51.6° / -6°
Feb
53.1° / -5.2°
Mar
57.9° / -1.3°
Apr
3515.1° / 4.3°
May
6721.2° / 10.2°
Jun
7826.1° / 15.6°
Jul
6728.2° / 17.9°
Aug
7327.3° / 17.2°
Sep
8223.8° / 13.4°
Oct
5017.2° / 7.5°
Nov
1810.2° / 2°
Dec
54.2° / -2.7°
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 1.6°C | -6°C | 76 mm | 12.5 | 2.0°C | 9 h 29 | 5 | Strong coverage |
| February | 3.1°C | -5.2°C | 63 mm | 10.2 | 0.8°C | 10 h 32 | 5 | Strong coverage |
| March | 7.9°C | -1.3°C | 78 mm | 11 | 1.4°C | 11 h 48 | 5 | Strong coverage |
| April | 15.1°C | 4.3°C | 95 mm | 11.5 | 4.6°C | 13 h 16 | 35 | Strong coverage |
| May | 21.2°C | 10.2°C | 96 mm | 10.6 | 10.7°C | 14 h 29 | 67 | Strong coverage |
| June | 26.1°C | 15.6°C | 97 mm | 8.8 | 18.1°C | 15 h 09 | 78 | Strong coverage |
| July | 28.2°C | 17.9°C | 93 mm | 8.7 | 22.9°C | 14 h 53 | 67 | Strong coverage |
| August | 27.3°C | 17.2°C | 90 mm | 8.1 | 23.7°C | 13 h 50 | 73 | Strong coverage |
| September | 23.8°C | 13.4°C | 100 mm | 8.3 | 21.4°C | 12 h 25 | 82 | Strong coverage |
| October | 17.2°C | 7.5°C | 91 mm | 9.7 | 16.4°C | 11 h 01 | 50 | Strong coverage |
| November | 10.2°C | 2°C | 86 mm | 10 | 10.6°C | 9 h 48 | 18 | Strong coverage |
| December | 4.2°C | -2.7°C | 76 mm | 11.4 | 5.7°C | 9 h 12 | 5 | Strong coverage |
What has changed
Brooklyn runs +1.4°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
+1.7
Feb
+2.2
Mar
+1.4
Apr
+1.2
May
+1.6
Jun
+1.1
Jul
+1.0
Aug
+0.9
Sep
+1.5
Oct
+1.4
Nov
+0.6
Dec
+2.6
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 22.8°C25 Jan 1950 | -28.9°C19 Jan 1994 | 64 mm15 Jan 1995 | 178 mm1950 · driest 9 mm in 1961 | 88 |
| February | 25.0°C24 Feb 2017 | -27.1°C20 Feb 2015 | 52 mm16 Feb 1976 | 141 mm2008 · driest 12 mm in 1978 | 88 |
| March | 28.3°C21 Mar 2012 | -20.6°C9 Mar 1984 | 70 mm21 Mar 1948 | 154 mm1954 · driest 20 mm in 1958 | 88 |
| April | 31.1°C28 Apr 1986 | -12.2°C1 Apr 1964 | 53 mm10 Apr 1990 | 175 mm2011 · driest 30 mm in 1946 | 88 |
| May | 33.9°C28 May 2018 | -3.9°C10 May 1966 | 85 mm24 May 1955 | 232 mm1989 · driest 17 mm in 2007 | 89 |
| June | 40.0°C25 Jun 1988 | -0.6°C11 Jun 1972 | 90 mm24 Jun 2014 | 230 mm1972 · driest 17 mm in 1988 | 89 |
| July | 39.4°C27 Jul 1941 | 5.0°C4 Jul 1968 | 90 mm19 Jul 2011 | 232 mm1992 · driest 17 mm in 2001 | 89 |
| August | 38.9°C27 Aug 1948 | 3.3°C29 Aug 1982 | 90 mm13 Aug 1994 | 230 mm2007 · driest 13 mm in 1969 | 88 |
| September | 38.3°C15 Sep 1939 | 0.0°C29 Sep 1942 | 117 mm7 Sep 1996 | 281 mm1996 · driest 19 mm in 1964 | 88 |
| October | 33.9°C1 Oct 2019 | -7.2°C31 Oct 1988 | 85 mm15 Oct 1954 | 264 mm2012 · driest 15 mm in 1938 | 88 |
| November | 27.8°C1 Nov 1950 | -16.1°C30 Nov 1976 | 63 mm18 Nov 2017 | 223 mm1985 · driest 20 mm in 2012 | 88 |
| December | 25.0°C3 Dec 1982 | -26.1°C22 Dec 1989 | 61 mm30 Dec 1992 | 218 mm1990 · driest 18 mm in 1958 | 88 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 26 | 2 | 14 |
| February | 0 | 0 | 24 | 2 | 10 |
| March | <1 | 0 | 20 | 2 | 7 |
| April | 3 | <1 | 6 | 3 | 2 |
| May | 10 | 2 | <1 | 3 | <1 |
| June | 19 | 7 | 0 | 3 | 0 |
| July | 26 | 11 | 0 | 3 | 0 |
| August | 24 | 8 | 0 | 3 | 0 |
| September | 13 | 3 | 0 | 3 | 0 |
| October | 3 | <1 | 1 | 3 | <1 |
| November | <1 | 0 | 12 | 3 | 4 |
| December | 0 | 0 | 22 | 2 | 8 |
The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 85); on 2011–2025 it is September (88). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 36% | 5% | 48% | -2.8–5.0°C |
| February | <1% | 34% | 5% | 48% | -0.7–5.9°C |
| March | 6% | 36% | 8% | 52% | 4.4–12.0°C |
| April | 17% | 37% | 10% | 49% | 12.2–17.5°C |
| May | 39% | 34% | 10% | 42% | 18.5–23.7°C |
| June | 64% | 30% | 11% | 35% | 24.3–28.0°C |
| July | 73% | 27% | 10% | 28% | 26.5–30.2°C |
| August | 74% | 26% | 9% | 27% | 25.7–29.4°C |
| September | 60% | 27% | 10% | 30% | 21.6–26.0°C |
| October | 28% | 29% | 9% | 35% | 15.3–20.3°C |
| November | 5% | 34% | 8% | 46% | 7.1–12.7°C |
| December | <1% | 36% | 6% | 49% | -0.1–6.9°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 5148346
- NOAA station
- USW00014820 · CLEVELAND
- Station distance
- 10.8 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 30 usable years
- Daylight
- Calculated from latitude 41.44°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 23 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.