St. Peters weather in October: St. Peters, Missouri: normal highs, lows, rain and records for October
St. Peters in October has a normal high of 69°F and a normal low of 45°F, a daily mean of 57°F, falling from 75°F on the 1st to 62°F by the 31st. Measurable precipitation falls on 8 days in a normal October, 3.11 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 20°C and low of 7°C, 79 mm of precipitation in October.
- NOAA stationSt Peters (2 mi SE)
- Station IDUSC00237475
- Location38.77°N 90.59°W
- Elevation575 ft (175 m)
- From the center1 miles
- Population61,398
- Jan 39° 21°
- Feb 45° 25°
- Mar 56° 33°
- Apr 67° 43°
- May 76° 54°
- Jun 84° 63°
- Jul 88° 68°
- Aug 87° 65°
- Sep 81° 57°
- Oct 69° 45°
- Nov 55° 35°
- Dec 44° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is St. Peters in October?
The normal high is 69°F and the normal low 45°F, for a daily mean of 56.9°F. October is 12.0°F cooler than September and 12.0°F warmer than November. October is the 6th warmest month of the year in St. Peters and the 8th wettest. Across the month the normal high falls 13°F, from 75°F on October 1 to 62°F on October 31. From one year to the next October's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 55°F and 59°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 29%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 75°F | 51°F | 25% | 17% |
| October 8 | 72°F | 48°F | 25% | 17% |
| October 15 | 69°F | 46°F | 26% | 18% |
| October 22 | 66°F | 43°F | 27% | 18% |
| October 31 | 62°F | 40°F | 29% | 20% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 75°F | 51°F | 25% | 17% | 11 h 50 min |
| October 2 | 74°F | 50°F | 25% | 17% | 11 h 50 min |
| October 3 | 74°F | 50°F | 25% | 17% | 11 h 50 min |
| October 4 | 74°F | 50°F | 25% | 17% | 11 h 40 min |
| October 5 | 73°F | 49°F | 25% | 17% | 11 h 40 min |
| October 6 | 73°F | 49°F | 25% | 17% | 11 h 40 min |
| October 7 | 72°F | 49°F | 25% | 17% | 11 h 40 min |
| October 8 | 72°F | 48°F | 25% | 17% | 11 h 30 min |
| October 9 | 72°F | 48°F | 25% | 17% | 11 h 30 min |
| October 10 | 71°F | 47°F | 26% | 17% | 11 h 30 min |
| October 11 | 71°F | 47°F | 26% | 17% | 11 h 30 min |
| October 12 | 70°F | 47°F | 26% | 17% | 11 h 20 min |
| October 13 | 70°F | 46°F | 26% | 17% | 11 h 20 min |
| October 14 | 69°F | 46°F | 26% | 17% | 11 h 20 min |
| October 15 | 69°F | 46°F | 26% | 18% | 11 h 20 min |
| October 16 | 69°F | 45°F | 26% | 18% | 11 h 10 min |
| October 17 | 68°F | 45°F | 26% | 18% | 11 h 10 min |
| October 18 | 68°F | 44°F | 27% | 18% | 11 h 10 min |
| October 19 | 67°F | 44°F | 27% | 18% | 11 h 10 min |
| October 20 | 67°F | 44°F | 27% | 18% | 11 h |
| October 21 | 66°F | 43°F | 27% | 18% | 11 h |
| October 22 | 66°F | 43°F | 27% | 18% | 11 h |
| October 23 | 66°F | 43°F | 27% | 18% | 11 h |
| October 24 | 65°F | 42°F | 27% | 19% | 10 h 50 min |
| October 25 | 65°F | 42°F | 28% | 19% | 10 h 50 min |
| October 26 | 64°F | 42°F | 28% | 19% | 10 h 50 min |
| October 27 | 64°F | 41°F | 28% | 19% | 10 h 50 min |
| October 28 | 63°F | 41°F | 28% | 19% | 10 h 40 min |
| October 29 | 63°F | 41°F | 29% | 20% | 10 h 40 min |
| October 30 | 62°F | 40°F | 29% | 20% | 10 h 40 min |
| October 31 | 62°F | 40°F | 29% | 20% | 10 h 40 min |
- Normal high
- 69°FOctober average
- Normal low
- 45°FOctober average
- Precipitation
- 3.11 inmonth total
- Days with precipitation
- 80.01 inch or more
- Nights at 32°F or colder
- 2
- Daylight
- 11 h 50 min to 10 h 40 minOctober 1 to October 31
- Days at 70°F or more
- 15
- Days at 80°F or more
- 5
- Sunshine
- 76%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00237475; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in St. Peters in October?
On a given October day the chance of 0.01 inch or more is 27% on average, highest around October 31 (29%). In all, 3.11 in falls on 8 days of a normal October, 1 of them with an inch or more.
In a normal October in St. Peters, 2 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00237475.
How does October in St. Peters compare across Missouri?
Across the 134 places PlainClimate covers in Missouri, October normal highs run from 64°F in Green City to 74°F in Malden; St. Peters's is 69°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.