St. Francisville, MO climate
St. Francisville has chilly winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 17°, and about 27 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in St. Francisville feels like
Winter
Spring
Summer
Fall
St. Francisville weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 34° | 17° | 1.6" | 7.3" | 8 | 15 | 19° – 38° |
| February | 39° | 21° | 1.8" | 7.4" | 7 | 11 | 17° – 41° |
| March | 52° | 32° | 2.5" | 3.0" | 9 | 3 | 34° – 56° |
| April | 64° | 42° | 3.8" | 0.7" | 10 | 0 | 44° – 60° |
| May | 74° | 53° | 5.2" | 0 | 12 | 0 | 58° – 72° |
| June | 83° | 63° | 5.0" | 0 | 10 | 0 | 70° – 76° |
| July | 87° | 66° | 4.3" | 0 | 9 | 0 | 71° – 83° |
| August | 85° | 64° | 3.7" | 0 | 8 | 0 | 69° – 80° |
| September | 78° | 56° | 3.8" | 0 | 7 | 0 | 62° – 72° |
| October | 66° | 44° | 3.1" | 0.3" | 8 | 0 | 49° – 60° |
| November | 51° | 32° | 2.5" | 1.5" | 8 | 1 | 34° – 51° |
| December | 39° | 23° | 1.9" | 6.4" | 8 | 9 | 16° – 40° |
| Year | 63° | 43° | 39.1" | 26.6" | 104 | 40 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in St. Francisville
St. Francisville gets 39 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 104 days a year. Snow covers the ground about 40 days of the year.
About 198 frost-free days a year
In half of years the last 32° night comes by April 10 and the first one by October 27. That leaves about 198 frost-free days for gardens, longer than 71% of U.S. towns.
Heating and cooling a home in St. Francisville
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In St. Francisville, 84% of that work is heating and 16% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How St. Francisville compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in St. Francisville averaged 0.6° warmer than the 1900s. The biggest change is in December (+1.8°). The shift is smaller than in 95% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at St. Francisville’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 16° to 40°. June is the most reliable, staying within 7°.
Common questions about St. Francisville’s climate
What is the coldest month in St. Francisville?
January, with a typical high of 34° and a low of 17°.
What is the hottest month in St. Francisville?
July, with a typical high of 87° and a low of 66°. About 26 days a year reach 90°.
How much snow does St. Francisville get?
About 27 inches in a normal winter, most of it in February.
When is the first frost in St. Francisville?
In half of years the first 32° night comes by October 27, and the last spring frost by April 10.
What is the rainiest month in St. Francisville?
May, with 5.2 inches of rain and melted snow. The year totals 39 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for St. Francisville itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Donnellson, IA (14 mi, snow) and Keokuk Lock Dam 19, IA (11 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.