Bishop weather in September: Bishop, California: normal highs, lows, rain and records for September
Bishop in September has a normal high of 90°F and a normal low of 47°F, a daily mean of 69°F, falling from 95°F on the 1st to 84°F by the 30th. Measurable precipitation falls on 1 days in a normal September, 0.11 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 32°C and low of 8°C, 3 mm of precipitation in September.
- NOAA stationBishop Airport
- Station IDUSW00023157
- Location37.37°N 118.36°W
- Elevation4,102 ft (1,250 m)
- Population3,746
- Jan 56° 24°
- Feb 59° 26°
- Mar 67° 31°
- Apr 74° 37°
- May 83° 44°
- Jun 94° 51°
- Jul 100° 57°
- Aug 98° 54°
- Sep 90° 47°
- Oct 78° 37°
- Nov 64° 27°
- Dec 55° 22°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Bishop in September?
The normal high is 90°F and the normal low 47°F, for a daily mean of 68.6°F. September is 7.4°F cooler than August and 11.1°F warmer than October. September is the 4th warmest month of the year in Bishop and the 11th wettest. Across the month the normal high falls 11°F, from 95°F on September 1 to 84°F on September 30. From one year to the next September's mean temperature typically moves about 1.8°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 67°F and 70°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 4%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 95°F | 51°F | 4% | 1% |
| September 8 | 93°F | 49°F | 4% | 1% |
| September 15 | 90°F | 48°F | 4% | 1% |
| September 22 | 88°F | 46°F | 4% | 1% |
| September 30 | 84°F | 43°F | 4% | 2% |
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 | 95°F | 51°F | 4% | 1% | 13 h |
| September 2 | 95°F | 51°F | 4% | 1% | 13 h |
| September 3 | 95°F | 50°F | 4% | 1% | 13 h |
| September 4 | 94°F | 50°F | 4% | 1% | 12 h 50 min |
| September 5 | 94°F | 50°F | 4% | 1% | 12 h 50 min |
| September 6 | 94°F | 50°F | 4% | 1% | 12 h 50 min |
| September 7 | 93°F | 49°F | 4% | 1% | 12 h 50 min |
| September 8 | 93°F | 49°F | 4% | 1% | 12 h 50 min |
| September 9 | 93°F | 49°F | 4% | 1% | 12 h 40 min |
| September 10 | 92°F | 49°F | 4% | 1% | 12 h 40 min |
| September 11 | 92°F | 49°F | 4% | 1% | 12 h 40 min |
| September 12 | 92°F | 48°F | 4% | 1% | 12 h 40 min |
| September 13 | 91°F | 48°F | 4% | 1% | 12 h 30 min |
| September 14 | 91°F | 48°F | 4% | 1% | 12 h 30 min |
| September 15 | 90°F | 48°F | 4% | 1% | 12 h 30 min |
| September 16 | 90°F | 47°F | 4% | 1% | 12 h 30 min |
| September 17 | 90°F | 47°F | 4% | 1% | 12 h 20 min |
| September 18 | 89°F | 47°F | 4% | 1% | 12 h 20 min |
| September 19 | 89°F | 46°F | 4% | 1% | 12 h 20 min |
| September 20 | 88°F | 46°F | 4% | 1% | 12 h 20 min |
| September 21 | 88°F | 46°F | 4% | 1% | 12 h 10 min |
| September 22 | 88°F | 46°F | 4% | 1% | 12 h 10 min |
| September 23 | 87°F | 45°F | 4% | 1% | 12 h 10 min |
| September 24 | 87°F | 45°F | 4% | 1% | 12 h 10 min |
| September 25 | 86°F | 45°F | 4% | 2% | 12 h 10 min |
| September 26 | 86°F | 44°F | 4% | 2% | 12 h |
| September 27 | 85°F | 44°F | 4% | 2% | 12 h |
| September 28 | 85°F | 44°F | 4% | 2% | 12 h |
| September 29 | 85°F | 43°F | 4% | 2% | 12 h |
| September 30 | 84°F | 43°F | 4% | 2% | 11 h 50 min |
- Normal high
- 90°FSeptember average
- Normal low
- 47°FSeptember average
- Precipitation
- 0.11 inmonth total
- Days with precipitation
- 10.01 inch or more
- Days at 90°F or more
- 17
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 30
- Days at 80°F or more
- 27
- Sunshine
- 92%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023157; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Bishop in September?
On a given September day the chance of 0.01 inch or more is 4% on average, highest around September 27 (4%). In all, 0.11 in falls on 1 days of a normal September.
In a normal September in Bishop, 17 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023157.
How humid and windy is Bishop in September?
At 3 p.m. the normal temperature is 82°F with 13% relative humidity and a dew point of 25°F; at 6 a.m. it is 46°F with 50% humidity. The wind averages 7.6 mph, most often from the south in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 46°F | 28°F | 50% | 6.5 mph | 92% |
| 9 a.m. | 68°F | 30°F | 24% | 5.4 mph | 94% |
| noon | 79°F | 28°F | 15% | 7.8 mph | 93% |
| 3 p.m. | 82°F | 25°F | 13% | 10.2 mph | 96% |
| 6 p.m. | 72°F | 27°F | 19% | 9.8 mph | – |
| 9 p.m. | 62°F | 28°F | 28% | 8.4 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023157. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in Bishop?
The warmest September temperature on Bishop's official record (since 1943) is 107°F, on September 4, 2020; the coldest is 25°F, on September 30, 2019. The wettest September brought 1.28 in (1994).
The September mean against the 1991-2020 normal of 68.6°F: 2021 71.1°F (+2.5), 2022 72.5°F (+3.9), 2024 70.0°F (+1.4), 2025 68.6°F (at normal), 2026 67.1°F (−1.5). 3 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 71.1°F | +2.5°F | 0.00 in |
| 2022 | 72.5°F | +3.9°F | 1.09 in |
| 2024 | 70.0°F | +1.4°F | 0.00 in |
| 2025 | 68.6°F | at normal | 0.06 in |
| 2026 | 67.1°F | −1.5°F | 0.28 in |
Source: records: ACIS, NWS threaded record BIHthr; recent months: ACIS, station USW00023157. Records and recent months use complete months only.
How does September in Bishop 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; Bishop's is 90°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.