September
September · August · June
83climate match
United States · 1991–2020
Best time to visit
Sparks.
September leads for comfortable weather in Sparks: typically 26.1°C by day, 10.1°C at night, with 39 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high26.1°C
Typical low10.1°C
Rain in September39 mm
August
August · July · June
74climate match
September
September · October · May
79climate match
The weakest month is January, scoring 5 against September’s 83 — days reach only 2.8°C, 21° below the 24°C the score treats as ideal, and nights drop to -10.6°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
52.8° / -10.6°
Feb
53.8° / -9.8°
Mar
2010.5° / -4.1°
Apr
4215.7° / 1.3°
May
6421.6° / 7.3°
Jun
7228° / 13.3°
Jul
6132.4° / 17°
Aug
7330.6° / 15.3°
Sep
8326.1° / 10.1°
Oct
5317.2° / 2.1°
Nov
2010.4° / -4.4°
Dec
53° / -10.1°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 2.8°C | -10.6°C | 7 mm | 1.9 | 9 h 20 | 5 | Good coverage |
| February | 3.8°C | -9.8°C | 14 mm | 3.1 | 10 h 27 | 5 | Good coverage |
| March | 10.5°C | -4.1°C | 26 mm | 4 | 11 h 47 | 20 | Good coverage |
| April | 15.7°C | 1.3°C | 62 mm | 5.8 | 13 h 20 | 42 | Good coverage |
| May | 21.6°C | 7.3°C | 101 mm | 8.1 | 14 h 37 | 64 | Good coverage |
| June | 28°C | 13.3°C | 96 mm | 6.7 | 15 h 20 | 72 | Good coverage |
| July | 32.4°C | 17°C | 74 mm | 5.7 | 15 h 03 | 61 | Good coverage |
| August | 30.6°C | 15.3°C | 52 mm | 5.2 | 13 h 56 | 73 | Good coverage |
| September | 26.1°C | 10.1°C | 39 mm | 3.9 | 12 h 26 | 83 | Good coverage |
| October | 17.2°C | 2.1°C | 33 mm | 4 | 10 h 58 | 53 | Good coverage |
| November | 10.4°C | -4.4°C | 12 mm | 2.3 | 9 h 40 | 20 | Good coverage |
| December | 3°C | -10.1°C | 21 mm | 2.4 | 9 h 02 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 21.7°C14 Jan 2006 | -30.0°C1 Jan 2018 | 19 mm24 Jan 2017 | 22 mm2017 · driest 0 mm in 2000 | 27 |
| February | 24.4°C18 Feb 2016 | -35.0°C20 Feb 2025 | 25 mm28 Feb 2012 | 55 mm2012 · driest 0 mm in 1999 | 28 |
| March | 30.6°C21 Mar 2026 | -28.9°C2 Mar 2014 | 41 mm14 Mar 2021 | 73 mm2021 · driest 1 mm in 2015 | 27 |
| April | 33.9°C22 Apr 2022 | -13.9°C3 Apr 2020 | 58 mm27 Apr 2014 | 120 mm2005 · driest 15 mm in 2020 | 26 |
| May | 37.2°C19 May 2009 | -6.7°C7 May 2001 | 107 mm22 May 2016 | 197 mm2019 · driest 17 mm in 2012 | 27 |
| June | 41.7°C26 Jun 2012 | 1.1°C5 Jun 2000 | 99 mm10 Jun 2023 | 238 mm2014 · driest 8 mm in 2002 | 28 |
| July | 45.6°C16 Jul 2006 | 5.0°C15 Jul 2014 | 61 mm13 Jul 2009 | 159 mm2018 · driest 2 mm in 2012 | 28 |
| August | 42.2°C29 Aug 2012 | 2.2°C29 Aug 2005 | 61 mm2 Aug 2010 | 129 mm2019 · driest 0 mm in 2000 | 27 |
| September | 40.6°C6 Sep 2013 | -2.8°C25 Sep 2000 | 97 mm23 Sep 2015 | 155 mm2025 · driest 3 mm in 2024 | 26 |
| October | 34.4°C11 Oct 2015 | -16.1°C27 Oct 2020 | 75 mm12 Oct 2023 | 86 mm2023 · driest 0 mm in 1999 | 25 |
| November | 30.0°C8 Nov 1999 | -23.9°C16 Nov 2014 | 38 mm29 Nov 2022 | 71 mm2022 · driest 0 mm in 1999 | 26 |
| December | 24.4°C4 Dec 1998 | -32.2°C18 Dec 2016 | 152 mm8 Dec 2003 | 204 mm2003 · driest 0 mm in 1998 | 26 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | 0 | 2 |
| February | 0 | 0 | 25 | <1 | 3 |
| March | <1 | 0 | 22 | <1 | 3 |
| April | 3 | <1 | 12 | 2 | 2 |
| May | 10 | 3 | 3 | 3 | <1 |
| June | 22 | 11 | 0 | 3 | 0 |
| July | 29 | 22 | 0 | 2 | 0 |
| August | 27 | 18 | 0 | 2 | 0 |
| September | 17 | 9 | <1 | 1 | 0 |
| October | 5 | 1 | 10 | 1 | <1 |
| November | <1 | <1 | 22 | <1 | 1 |
| December | 0 | 0 | 27 | <1 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 7% | <1% | 2% | -0.1–5.3°C |
| February | 2% | 11% | 1% | 5% | -0.9–8.8°C |
| March | 15% | 14% | 3% | 10% | 5.8–15.1°C |
| April | 29% | 20% | 7% | 17% | 13.6–17.4°C |
| May | 50% | 27% | 11% | 30% | 19.4–24.1°C |
| June | 74% | 23% | 11% | 23% | 25.7–31.0°C |
| July | 81% | 19% | 8% | 14% | 30.0–35.2°C |
| August | 82% | 18% | 6% | 12% | 28.5–32.8°C |
| September | 78% | 14% | 5% | 11% | 24.5–28.3°C |
| October | 37% | 12% | 3% | 5% | 14.2–20.2°C |
| November | 13% | 8% | 1% | 1% | 6.9–13.5°C |
| December | <1% | 8% | 1% | 2% | -0.8–7.2°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 5699749
- NOAA station
- USC00258751 · VALENTINE #1
- Station distance
- 25.2 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 18 usable years
- Daylight
- Calculated from latitude 42.94°, 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.