Gallup weather in September: Gallup, New Mexico: normal highs, lows, rain and records for September
Gallup in September has a normal high of 80°F and a normal low of 44°F, a daily mean of 62°F, falling from 84°F on the 1st to 75°F by the 30th. Measurable precipitation falls on 7 days in a normal September, 1.27 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 27°C and low of 7°C, 32 mm of precipitation in September.
- NOAA stationGallup Municipal Airport
- Station IDUSW00023081
- Location35.51°N 108.79°W
- Elevation6,471 ft (1,972 m)
- From the center3 miles
- Population20,339
- Jan 45° 14°
- Feb 50° 19°
- Mar 59° 23°
- Apr 66° 28°
- May 75° 36°
- Jun 86° 45°
- Jul 89° 55°
- Aug 86° 53°
- Sep 80° 44°
- Oct 69° 31°
- Nov 56° 20°
- Dec 45° 14°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Gallup in September?
The normal high is 80°F and the normal low 44°F, for a daily mean of 62.2°F. September is 7.5°F cooler than August and 12.5°F warmer than October. September is the 4th warmest month of the year in Gallup and the 3rd wettest. Across the month the normal high falls 9°F, from 84°F on September 1 to 75°F on September 30. From one year to the next September's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 60°F and 64°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 30%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 84°F | 50°F | 30% | 14% |
| September 8 | 83°F | 48°F | 28% | 12% |
| September 15 | 80°F | 45°F | 25% | 11% |
| September 22 | 78°F | 42°F | 21% | 10% |
| September 30 | 75°F | 38°F | 19% | 9% |
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 | 84°F | 50°F | 30% | 14% | 13 h |
| September 2 | 84°F | 50°F | 30% | 13% | 13 h |
| September 3 | 84°F | 49°F | 29% | 13% | 12 h 50 min |
| September 4 | 83°F | 49°F | 29% | 13% | 12 h 50 min |
| September 5 | 83°F | 49°F | 29% | 13% | 12 h 50 min |
| September 6 | 83°F | 48°F | 28% | 13% | 12 h 50 min |
| September 7 | 83°F | 48°F | 28% | 13% | 12 h 40 min |
| September 8 | 83°F | 48°F | 28% | 12% | 12 h 40 min |
| September 9 | 82°F | 47°F | 27% | 12% | 12 h 40 min |
| September 10 | 82°F | 47°F | 27% | 12% | 12 h 40 min |
| September 11 | 82°F | 47°F | 27% | 12% | 12 h 40 min |
| September 12 | 81°F | 46°F | 26% | 12% | 12 h 30 min |
| September 13 | 81°F | 46°F | 26% | 12% | 12 h 30 min |
| September 14 | 81°F | 45°F | 25% | 11% | 12 h 30 min |
| September 15 | 80°F | 45°F | 25% | 11% | 12 h 30 min |
| September 16 | 80°F | 45°F | 24% | 11% | 12 h 30 min |
| September 17 | 80°F | 44°F | 23% | 11% | 12 h 20 min |
| September 18 | 79°F | 44°F | 23% | 10% | 12 h 20 min |
| September 19 | 79°F | 43°F | 22% | 10% | 12 h 20 min |
| September 20 | 79°F | 43°F | 22% | 10% | 12 h 20 min |
| September 21 | 78°F | 42°F | 22% | 10% | 12 h 10 min |
| September 22 | 78°F | 42°F | 21% | 10% | 12 h 10 min |
| September 23 | 78°F | 41°F | 21% | 10% | 12 h 10 min |
| September 24 | 77°F | 41°F | 20% | 10% | 12 h 10 min |
| September 25 | 77°F | 40°F | 20% | 9% | 12 h 10 min |
| September 26 | 76°F | 40°F | 20% | 9% | 12 h |
| September 27 | 76°F | 40°F | 19% | 9% | 12 h |
| September 28 | 76°F | 39°F | 19% | 9% | 12 h |
| September 29 | 75°F | 39°F | 19% | 9% | 12 h |
| September 30 | 75°F | 38°F | 19% | 9% | 11 h 50 min |
- Normal high
- 80°FSeptember average
- Normal low
- 44°FSeptember average
- Precipitation
- 1.27 inmonth total
- Days with precipitation
- 70.01 inch or more
- Days at 90°F or more
- 1
- Nights at 32°F or colder
- 3
- 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
- 18
- Sunshine
- 86%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023081; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Gallup in September?
On a given September day the chance of 0.01 inch or more is 24% on average, highest around September 1 (30%). In all, 1.27 in falls on 7 days of a normal September.
In a normal September in Gallup, 1 days reach 90°F and 3 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023081.
How humid and windy is Gallup in September?
At 3 p.m. the normal temperature is 74°F with 19% relative humidity and a dew point of 29°F; at 6 a.m. it is 40°F with 67% humidity. The wind averages 6.1 mph, most often from the west-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. | 40°F | 30°F | 67% | 2.3 mph | 81% |
| 9 a.m. | 59°F | 35°F | 40% | 5.3 mph | 84% |
| noon | 71°F | 32°F | 24% | 10.0 mph | 77% |
| 3 p.m. | 74°F | 29°F | 19% | 11.7 mph | 73% |
| 6 p.m. | 67°F | 29°F | 24% | 9.3 mph | 79% |
| 9 p.m. | 53°F | 30°F | 42% | 4.3 mph | 82% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023081. 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 Gallup?
The warmest September temperature on this station's record (since 1973) is 96°F, on September 6, 2020; the coldest is 20°F, on September 26, 1993. The wettest September brought 3.08 in (2026).
The September mean against the 1991-2020 normal of 62.2°F: 2021 64.0°F (+1.8), 2022 66.0°F (+3.8), 2023 63.1°F (+0.9), 2024 63.8°F (+1.6), 2025 62.4°F (+0.2), 2026 64.1°F (+1.9). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 64.0°F | +1.8°F | 1.98 in |
| 2022 | 66.0°F | +3.8°F | 1.17 in |
| 2023 | 63.1°F | +0.9°F | 0.51 in |
| 2024 | 63.8°F | +1.6°F | 0.53 in |
| 2025 | 62.4°F | +0.2°F | 2.14 in |
| 2026 | 64.1°F | +1.9°F | 3.08 in |
Source: records: ACIS, station USW00023081; recent months: ACIS, station USW00023081. Records and recent months use complete months only.
How does September in Gallup compare across New Mexico?
Across the 98 places PlainClimate covers in New Mexico, September normal highs run from 67°F in Cloudcroft to 91°F in Lordsburg; Gallup's is 80°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.