La Junta weather in September: La Junta, Colorado: normal highs, lows, rain and records for September
La Junta in September has a normal high of 84°F and a normal low of 53°F, a daily mean of 69°F, falling from 89°F on the 1st to 78°F by the 30th. Measurable precipitation falls on 5 days in a normal September, 0.84 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 12°C, 21 mm of precipitation in September.
- NOAA stationLa Junta Municipal Airport
- Station IDUSW00023067
- Location38.05°N 103.51°W
- Elevation4,194 ft (1,278 m)
- Population6,986
- Jan 47° 18°
- Feb 51° 21°
- Mar 61° 30°
- Apr 69° 38°
- May 79° 48°
- Jun 90° 58°
- Jul 95° 64°
- Aug 92° 62°
- Sep 84° 53°
- Oct 71° 39°
- Nov 57° 27°
- Dec 46° 18°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is La Junta in September?
The normal high is 84°F and the normal low 53°F, for a daily mean of 68.6°F. September is 8.2°F cooler than August and 14.0°F warmer than October. September is the 4th warmest month of the year in La Junta and the 7th wettest. Across the month the normal high falls 11°F, from 89°F on September 1 to 78°F on September 30. From one year to the next September's mean temperature typically moves about 3.0°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 66°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 18%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 89°F | 59°F | 18% | 7% |
| September 8 | 87°F | 56°F | 17% | 7% |
| September 15 | 85°F | 53°F | 16% | 7% |
| September 22 | 82°F | 50°F | 16% | 7% |
| September 30 | 78°F | 46°F | 14% | 6% |
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 | 89°F | 59°F | 18% | 7% | 13 h |
| September 2 | 89°F | 58°F | 18% | 7% | 13 h |
| September 3 | 89°F | 58°F | 18% | 7% | 13 h |
| September 4 | 88°F | 58°F | 17% | 7% | 13 h |
| September 5 | 88°F | 57°F | 17% | 7% | 12 h 50 min |
| September 6 | 88°F | 57°F | 17% | 7% | 12 h 50 min |
| September 7 | 88°F | 57°F | 17% | 7% | 12 h 50 min |
| September 8 | 87°F | 56°F | 17% | 7% | 12 h 50 min |
| September 9 | 87°F | 56°F | 17% | 7% | 12 h 40 min |
| September 10 | 87°F | 55°F | 17% | 7% | 12 h 40 min |
| September 11 | 86°F | 55°F | 17% | 7% | 12 h 40 min |
| September 12 | 86°F | 55°F | 16% | 7% | 12 h 40 min |
| September 13 | 86°F | 54°F | 16% | 7% | 12 h 30 min |
| September 14 | 85°F | 54°F | 16% | 7% | 12 h 30 min |
| September 15 | 85°F | 53°F | 16% | 7% | 12 h 30 min |
| September 16 | 85°F | 53°F | 16% | 7% | 12 h 30 min |
| September 17 | 84°F | 53°F | 16% | 7% | 12 h 20 min |
| September 18 | 84°F | 52°F | 16% | 7% | 12 h 20 min |
| September 19 | 83°F | 52°F | 16% | 7% | 12 h 20 min |
| September 20 | 83°F | 51°F | 16% | 7% | 12 h 20 min |
| September 21 | 82°F | 51°F | 16% | 7% | 12 h 10 min |
| September 22 | 82°F | 50°F | 16% | 7% | 12 h 10 min |
| September 23 | 82°F | 50°F | 15% | 7% | 12 h 10 min |
| September 24 | 81°F | 49°F | 15% | 7% | 12 h 10 min |
| September 25 | 81°F | 49°F | 15% | 6% | 12 h 10 min |
| September 26 | 80°F | 48°F | 15% | 6% | 12 h |
| September 27 | 80°F | 48°F | 15% | 6% | 12 h |
| September 28 | 79°F | 47°F | 15% | 6% | 12 h |
| September 29 | 79°F | 47°F | 14% | 6% | 12 h |
| September 30 | 78°F | 46°F | 14% | 6% | 11 h 50 min |
- Normal high
- 84°FSeptember average
- Normal low
- 53°FSeptember average
- Precipitation
- 0.84 inmonth total
- Days with precipitation
- 50.01 inch or more
- Days at 90°F or more
- 11
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 27
- Days at 80°F or more
- 21
- Sunshine
- 88%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00023067; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in La Junta in September?
On a given September day the chance of 0.01 inch or more is 16% on average, highest around September 1 (18%). In all, 0.84 in falls on 5 days of a normal September.
In a normal September in La Junta, 11 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00023067.
How humid and windy is La Junta in September?
At 3 p.m. the normal temperature is 77°F with 23% relative humidity and a dew point of 36°F; at 6 a.m. it is 49°F with 69% humidity. The wind averages 9.4 mph, most often from the east-southeast in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 49°F | 39°F | 69% | 8.3 mph | 83% |
| 9 a.m. | 62°F | 40°F | 45% | 8.9 mph | 84% |
| noon | 73°F | 38°F | 28% | 9.3 mph | 85% |
| 3 p.m. | 77°F | 36°F | 23% | 11.0 mph | 87% |
| 6 p.m. | 68°F | 39°F | 35% | 10.4 mph | 86% |
| 9 p.m. | 60°F | 40°F | 47% | 9.4 mph | 86% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023067. 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 La Junta?
The warmest September temperature on this station's record (since 1945) is 108°F, on September 6, 2020; the coldest is 22°F, on September 30, 1985. The wettest September brought 6.11 in (2026); the snowiest, 2.5 inches (1984).
The September mean against the 1991-2020 normal of 68.6°F: 2021 72.9°F (+4.3), 2022 69.8°F (+1.3), 2023 69.6°F (+1.0), 2024 70.2°F (+1.6), 2025 68.6°F (at normal), 2026 72.6°F (+4.0). 5 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 72.9°F | +4.3°F | 1.90 in |
| 2022 | 69.8°F | +1.3°F | 0.64 in |
| 2023 | 69.6°F | +1.0°F | 1.02 in |
| 2024 | 70.2°F | +1.6°F | 0.31 in |
| 2025 | 68.6°F | at normal | 1.92 in |
| 2026 | 72.6°F | +4.0°F | 6.11 in |
Source: records: ACIS, station USW00023067; recent months: ACIS, station USW00023067. Records and recent months use complete months only.
How does September in La Junta compare across Colorado?
Across the 125 places PlainClimate covers in Colorado, September normal highs run from 62°F in Leadville to 86°F in Lamar; La Junta's is 84°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.