Fremont weather in September: Fremont, California: normal highs, lows, rain and records for September
Fremont in September has a normal high of 78°F and a normal low of 56°F, a daily mean of 67°F, falling from 79°F on the 1st to 77°F by the 30th. Measurable precipitation falls on 1 days in a normal September, 0.10 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 13°C, 3 mm of precipitation in September.
- NOAA stationFremont
- Station IDUSC00043244
- Location37.54°N 122.02°W
- Elevation38 ft (12 m)
- From the center5 miles
- Population228,192
- Jan 59° 43°
- Feb 61° 44°
- Mar 65° 46°
- Apr 68° 48°
- May 71° 52°
- Jun 75° 55°
- Jul 78° 57°
- Aug 78° 57°
- Sep 78° 56°
- Oct 73° 52°
- Nov 65° 46°
- Dec 58° 43°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Fremont in September?
The normal high is 78°F and the normal low 56°F, for a daily mean of 67.2°F. September is 0.5°F cooler than August and 4.6°F warmer than October. September is the 3rd warmest month of the year in Fremont and the 10th wettest. Across the month the normal high falls 2°F, from 79°F on September 1 to 77°F on September 30. From one year to the next September's mean temperature typically moves about 1.7°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 66°F and 69°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 5%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 79°F | 57°F | 2% | 1% |
| September 8 | 79°F | 57°F | 2% | 1% |
| September 15 | 79°F | 56°F | 3% | 1% |
| September 22 | 78°F | 56°F | 3% | 2% |
| September 30 | 77°F | 55°F | 5% | 3% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 79°F | 57°F | 2% | 1% | 13 h |
| September 2 | 79°F | 57°F | 2% | 1% | 13 h |
| September 3 | 79°F | 57°F | 2% | 1% | 13 h |
| September 4 | 79°F | 57°F | 2% | 1% | 12 h 50 min |
| September 5 | 79°F | 57°F | 2% | 1% | 12 h 50 min |
| September 6 | 79°F | 57°F | 2% | 1% | 12 h 50 min |
| September 7 | 79°F | 57°F | 2% | 1% | 12 h 50 min |
| September 8 | 79°F | 57°F | 2% | 1% | 12 h 50 min |
| September 9 | 79°F | 57°F | 2% | 1% | 12 h 40 min |
| September 10 | 79°F | 57°F | 2% | 1% | 12 h 40 min |
| September 11 | 79°F | 56°F | 2% | 1% | 12 h 40 min |
| September 12 | 79°F | 56°F | 2% | 1% | 12 h 40 min |
| September 13 | 79°F | 56°F | 2% | 1% | 12 h 30 min |
| September 14 | 79°F | 56°F | 3% | 1% | 12 h 30 min |
| September 15 | 79°F | 56°F | 3% | 1% | 12 h 30 min |
| September 16 | 79°F | 56°F | 3% | 2% | 12 h 30 min |
| September 17 | 79°F | 56°F | 3% | 2% | 12 h 20 min |
| September 18 | 78°F | 56°F | 3% | 2% | 12 h 20 min |
| September 19 | 78°F | 56°F | 3% | 2% | 12 h 20 min |
| September 20 | 78°F | 56°F | 3% | 2% | 12 h 20 min |
| September 21 | 78°F | 56°F | 3% | 2% | 12 h 10 min |
| September 22 | 78°F | 56°F | 3% | 2% | 12 h 10 min |
| September 23 | 78°F | 56°F | 4% | 2% | 12 h 10 min |
| September 24 | 78°F | 55°F | 4% | 2% | 12 h 10 min |
| September 25 | 78°F | 55°F | 4% | 2% | 12 h 10 min |
| September 26 | 77°F | 55°F | 4% | 2% | 12 h |
| September 27 | 77°F | 55°F | 4% | 2% | 12 h |
| September 28 | 77°F | 55°F | 4% | 3% | 12 h |
| September 29 | 77°F | 55°F | 4% | 3% | 12 h |
| September 30 | 77°F | 55°F | 5% | 3% | 11 h 50 min |
- Normal high
- 78°FSeptember average
- Normal low
- 56°FSeptember average
- Precipitation
- 0.10 inmonth total
- Days with precipitation
- 10.01 inch or more
- Days at 90°F or more
- 4
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 28
- Days at 80°F or more
- 13
- Sunshine
- 82%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00043244; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Fremont in September?
On a given September day the chance of 0.01 inch or more is 3% on average, highest around September 30 (5%). In all, 0.10 in falls on 1 days of a normal September.
In a normal September in Fremont, 4 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00043244.
What are the records for September in Fremont?
The warmest September temperature on this station's record (since 1996) is 104°F, on September 2, 2017; the coldest is 46°F, on September 29, 2007. The wettest September brought 0.62 in (2013).
The September mean against the 1991-2020 normal of 67.2°F: 2021 65.7°F (−1.5), 2022 68.2°F (+1.0), 2023 64.3°F (−3.0), 2024 66.3°F (−1.0), 2025 68.6°F (+1.4), 2026 65.9°F (−1.3). 2 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 65.7°F | −1.5°F | 0.02 in |
| 2022 | 68.2°F | +1.0°F | 0.48 in |
| 2023 | 64.3°F | −3.0°F | 0.04 in |
| 2024 | 66.3°F | −1.0°F | 0.00 in |
| 2025 | 68.6°F | +1.4°F | 0.09 in |
| 2026 | 65.9°F | −1.3°F | 0.07 in |
Source: records: ACIS, station USC00043244; recent months: ACIS, station USC00043244. Records and recent months use complete months only.
How does September in Fremont compare across California?
Across the 219 places PlainClimate covers in California, September normal highs run from 64°F in Eureka to 104°F in Brawley; Fremont's is 78°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.