Paso Robles weather in September: Paso Robles, California: normal highs, lows, rain and records for September
Paso Robles in September has a normal high of 90°F and a normal low of 50°F, a daily mean of 70°F, falling from 93°F on the 1st to 86°F by the 30th. Measurable precipitation falls on 1 days in a normal September, 0.06 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 32°C and low of 10°C, 2 mm of precipitation in September.
- NOAA stationPaso Robles Municipal Airport
- Station IDUSW00093209
- Location35.67°N 120.63°W
- Elevation810 ft (247 m)
- Population31,568
- Jan 61° 35°
- Feb 63° 37°
- Mar 68° 40°
- Apr 74° 41°
- May 81° 46°
- Jun 89° 50°
- Jul 93° 54°
- Aug 94° 53°
- Sep 90° 50°
- Oct 81° 44°
- Nov 69° 37°
- Dec 60° 33°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Paso Robles in September?
The normal high is 90°F and the normal low 50°F, for a daily mean of 70.0°F. September is 3.6°F cooler than August and 7.9°F warmer than October. September is the 3rd warmest month of the year in Paso Robles and the 10th wettest. Across the month the normal high falls 7°F, from 93°F on September 1 to 86°F on September 30. From one year to the next September's mean temperature typically moves about 2.1°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 68°F and 72°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 | 93°F | 52°F | 1% | 0% |
| September 8 | 92°F | 51°F | 2% | 0% |
| September 15 | 91°F | 50°F | 2% | 1% |
| September 22 | 89°F | 49°F | 3% | 1% |
| September 30 | 86°F | 47°F | 4% | 1% |
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 | 93°F | 52°F | 1% | 0% | 13 h |
| September 2 | 93°F | 52°F | 1% | 0% | 13 h |
| September 3 | 93°F | 52°F | 1% | 0% | 12 h 50 min |
| September 4 | 93°F | 52°F | 1% | 0% | 12 h 50 min |
| September 5 | 93°F | 52°F | 1% | 0% | 12 h 50 min |
| September 6 | 93°F | 51°F | 1% | 0% | 12 h 50 min |
| September 7 | 92°F | 51°F | 2% | 0% | 12 h 50 min |
| September 8 | 92°F | 51°F | 2% | 0% | 12 h 40 min |
| September 9 | 92°F | 51°F | 2% | 0% | 12 h 40 min |
| September 10 | 92°F | 51°F | 2% | 0% | 12 h 40 min |
| September 11 | 92°F | 51°F | 2% | 0% | 12 h 40 min |
| September 12 | 91°F | 51°F | 2% | 1% | 12 h 30 min |
| September 13 | 91°F | 51°F | 2% | 1% | 12 h 30 min |
| September 14 | 91°F | 50°F | 2% | 1% | 12 h 30 min |
| September 15 | 91°F | 50°F | 2% | 1% | 12 h 30 min |
| September 16 | 90°F | 50°F | 2% | 1% | 12 h 30 min |
| September 17 | 90°F | 50°F | 2% | 1% | 12 h 20 min |
| September 18 | 90°F | 50°F | 2% | 1% | 12 h 20 min |
| September 19 | 89°F | 50°F | 3% | 1% | 12 h 20 min |
| September 20 | 89°F | 49°F | 3% | 1% | 12 h 20 min |
| September 21 | 89°F | 49°F | 3% | 1% | 12 h 10 min |
| September 22 | 89°F | 49°F | 3% | 1% | 12 h 10 min |
| September 23 | 88°F | 49°F | 3% | 1% | 12 h 10 min |
| September 24 | 88°F | 49°F | 3% | 1% | 12 h 10 min |
| September 25 | 88°F | 48°F | 3% | 1% | 12 h 10 min |
| September 26 | 87°F | 48°F | 3% | 1% | 12 h |
| September 27 | 87°F | 48°F | 3% | 1% | 12 h |
| September 28 | 87°F | 48°F | 3% | 1% | 12 h |
| September 29 | 86°F | 47°F | 4% | 1% | 12 h |
| September 30 | 86°F | 47°F | 4% | 1% | 11 h 50 min |
- Normal high
- 90°FSeptember average
- Normal low
- 50°FSeptember average
- Precipitation
- 0.06 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
- 26
- Sunshine
- 95%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00093209; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Paso Robles in September?
On a given September day the chance of 0.01 inch or more is 2% on average, highest around September 30 (4%). In all, 0.06 in falls on 1 days of a normal September.
In a normal September in Paso Robles, 17 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093209.
How humid and windy is Paso Robles in September?
At 3 p.m. the normal temperature is 85°F with 23% relative humidity and a dew point of 43°F; at 6 a.m. it is 50°F with 78% humidity. The wind averages 5.7 mph, most often from the southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 50°F | 43°F | 78% | 2.3 mph | 76% |
| 9 a.m. | 63°F | 47°F | 55% | 3.0 mph | 78% |
| noon | 80°F | 45°F | 29% | 5.9 mph | 91% |
| 3 p.m. | 85°F | 43°F | 23% | 10.2 mph | 92% |
| 6 p.m. | 74°F | 45°F | 35% | 10.3 mph | 93% |
| 9 p.m. | 64°F | 46°F | 53% | 7.1 mph | 94% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00093209. 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 Paso Robles?
The warmest September temperature on this station's record (since 1952) is 117°F, on September 6, 2020; the coldest is 37°F, on September 14, 1970. The wettest September brought 3.21 in (1976).
The September mean against the 1991-2020 normal of 70.0°F: 2021 72.5°F (+2.5), 2022 74.9°F (+4.9), 2023 67.3°F (−2.7), 2024 71.5°F (+1.5), 2025 72.0°F (+2.0), 2026 69.7°F (−0.3). 4 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 72.5°F | +2.5°F | 0.00 in |
| 2022 | 74.9°F | +4.9°F | 0.38 in |
| 2023 | 67.3°F | −2.7°F | 0.02 in |
| 2024 | 71.5°F | +1.5°F | 0.04 in |
| 2025 | 72.0°F | +2.0°F | 0.31 in |
| 2026 | 69.7°F | −0.3°F | 0.01 in |
Source: records: ACIS, station USW00093209; recent months: ACIS, station USW00093209. Records and recent months use complete months only.
How does September in Paso Robles 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; Paso Robles's is 90°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Paso Robles in August94°F by day, 53°F at night
- Paso Robles in October81°F by day, 44°F at night
- Paso Robles through the yearEvery month, frost dates, records and recent years
- California in SeptemberThe statewide normal and the warmest and coolest places
- Brawley: California's warmest Septembernormal high 104°F