St. Joseph weather in April: St. Joseph, Missouri: normal highs, lows, rain and records for April

St. Joseph in April has a normal high of 66°F and a normal low of 42°F, a daily mean of 54°F, rising from 62°F on the 1st to 70°F by the 30th. Measurable precipitation falls on 11 days in a normal April, 3.71 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 19°C and low of 5°C, 94 mm of precipitation in April.

  • NOAA stationSt Joseph Rosecrans Airport
  • Station IDUSW00013993
  • Location39.77°N 94.92°W
  • Elevation818 ft (249 m)
  • From the center6 miles
  • Population71,098
  1. Jan 37° 17°
  2. Feb 43° 21°
  3. Mar 55° 32°
  4. Apr 66° 42°
  5. May 76° 54°
  6. Jun 85° 64°
  7. Jul 88° 67°
  8. Aug 86° 65°
  9. Sep 80° 54°
  10. Oct 68° 43°
  11. Nov 53° 31°
  12. Dec 41° 21°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is St. Joseph in April?

The normal high is 66°F and the normal low 42°F, for a daily mean of 53.8°F. April is 10.5°F warmer than March and 11.0°F cooler than May. April is the 7th warmest month of the year in St. Joseph and the 5th wettest. Across the month the normal high rises 8°F, from 62°F on April 1 to 70°F on April 30. From one year to the next April's mean temperature typically moves about 3.4°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 50°F and 57°F.

St. Joseph in April, day by day: normal high and low

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 39%).

Normal high and low on five days of April, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
April 162°F37°F30%18%
April 864°F39°F32%19%
April 1566°F42°F35%21%
April 2268°F44°F37%22%
April 3070°F47°F39%24%
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
St. Joseph: NOAA 1991-2020 daily normals for each day of April
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
April 162°F37°F30%18%12 h 40 min
April 262°F37°F30%18%12 h 40 min
April 362°F38°F31%18%12 h 40 min
April 463°F38°F31%19%12 h 40 min
April 563°F38°F31%19%12 h 50 min
April 663°F39°F32%19%12 h 50 min
April 764°F39°F32%19%12 h 50 min
April 864°F39°F32%19%13 h
April 964°F40°F33%20%13 h
April 1064°F40°F33%20%13 h
April 1165°F40°F33%20%13 h
April 1265°F41°F34%20%13 h 10 min
April 1365°F41°F34%20%13 h 10 min
April 1466°F41°F35%21%13 h 10 min
April 1566°F42°F35%21%13 h 10 min
April 1666°F42°F35%21%13 h 20 min
April 1766°F42°F36%21%13 h 20 min
April 1867°F43°F36%22%13 h 20 min
April 1967°F43°F36%22%13 h 20 min
April 2067°F43°F37%22%13 h 30 min
April 2167°F44°F37%22%13 h 30 min
April 2268°F44°F37%22%13 h 30 min
April 2368°F44°F38%23%13 h 30 min
April 2468°F45°F38%23%13 h 30 min
April 2569°F45°F38%23%13 h 40 min
April 2669°F45°F38%23%13 h 40 min
April 2769°F46°F39%23%13 h 40 min
April 2870°F46°F39%23%13 h 40 min
April 2970°F47°F39%24%13 h 50 min
April 3070°F47°F39%24%13 h 50 min
Normal high
66°FApril average
Normal low
42°FApril average
Precipitation
3.71 inmonth total
Days with precipitation
110.01 inch or more
Nights at 32°F or colder
6
Daylight
12 h 40 min to 13 h 50 minApril 1 to April 30
Days at 70°F or more
13
Days at 80°F or more
4
Sunshine
71%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USW00013993; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in St. Joseph in April?

On a given April day the chance of 0.01 inch or more is 35% on average, highest around April 30 (39%). In all, 3.71 in falls on 11 days of a normal April, 1 of them with an inch or more.

In a normal April in St. Joseph, 6 nights fall to freezing.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013993.

What are the records for April in St. Joseph?

The warmest April temperature on this station's record (since 1908) is 96°F, on April 28, 1970; the coldest is 2°F, on April 3, 1975. The wettest April brought 10.88 in (1944); the snowiest, 5.3 inches (1997).

The April mean against the 1991-2020 normal of 53.8°F: 2021 53.1°F (−0.6), 2022 49.9°F (−3.9), 2023 54.7°F (+0.9), 2024 58.6°F (+4.8), 2025 55.7°F (+1.9), 2026 59.8°F (+6.0). 4 of 6 ran warmer than normal.

St. Joseph: April in recent years against the 1991-2020 normal
AprilMeanAgainst normalPrecip.
202153.1°F−0.6°F2.10 in
202249.9°F−3.9°F3.06 in
202354.7°F+0.9°F2.01 in
202458.6°F+4.8°F4.75 in
202555.7°F+1.9°F2.44 in
202659.8°F+6.0°F5.19 in

Source: records: ACIS, station USW00013993; recent months: ACIS, station USW00013993. Records and recent months use complete months only.

How does April in St. Joseph compare across Missouri?

Across the 134 places PlainClimate covers in Missouri, April normal highs run from 62°F in Unionville to 72°F in Marble Hill; St. Joseph's is 66°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

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