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Spencer, IA: records

: The hottest day on record in Spencer, IA: 113°F on Friday 17 July 1936.

The record begins
1895

All-time records

Hottest day
113°F
Coldest night
-38°F
Wettest day
5.50 in
Warmest night
81°F
Coldest day
-18°F

Daily records by decade

New daily records set in Spencer, IA by decade since the 1930s: the most record highs, 52, came in the 2020s; the most record lows, 72, in the 1950s.
1930s: 5 record highs1940s: 52 record highs1950s: 37 record highs1960s: 31 record highs1970s: 25 record highs1980s: 42 record highs1990s: 22 record highs2000s: 36 record highs2010s: 31 record highs2020s: 52 record highs1930s: 3 record lows1940s: 65 record lows1950s: 72 record lows1960s: 47 record lows1970s: 39 record lows1980s: 24 record lows1990s: 17 record lows2000s: 25 record lows2010s: 26 record lows2020s: 16 record lows 52 72 1890s 2020s
  • Record highs
  • Record lows
Every decade as a table
DecadeRecord highsRecord lowsYears in the record
1890s005
1900s0010
1910s0010
1920s0010
1930s5310
1940s526510
1950s377210
1960s314710
1970s253910
1980s422410
1990s221710
2000s362510
2010s312610
2020s52167

Records by month

MonthHighestLowestWettest day
January66°F , -38°F 1.00 in
February74°F -36°F 1.35 in
March89°F -28°F 2.19 in
April95°F 0°F 3.79 in
May109°F 20°F , , 3.76 in
June106°F 30°F 4.38 in
July113°F 40°F , 4.68 in
August111°F 34°F 4.10 in
September102°F , 21°F 5.50 in
October95°F -8°F , 2.41 in
November80°F , , and 1 more-17°F 2.85 in
December67°F -30°F 1.50 in

Streaks, months and years

Longest heat streak24 days to A high of 90°F or above
Longest cold streak49 days to A high of 32°F or below
Wettest month14.66 inSeptember 2004
Driest month0.00 inFebruary 1900
Wettest year42.51 in1951
Driest year14.41 in1958
Every record in words
  • The coldest night on record in Spencer, IA: a low of -38°F on Friday 12 January 1912.
  • The wettest day on record in Spencer, IA: 5.50 in on Tuesday 14 September 2004.
  • The warmest night on record in Spencer, IA: a low of 81°F on Saturday 21 June 2025.
  • The coldest day on record in Spencer, IA: a high of -18°F on Wednesday 8 February 1899.
  • The longest run of days with a high of 90°F or above in Spencer, IA: 24 days, from Tuesday 16 July to Thursday 8 August 1935.
  • The longest run of days with a high of 32°F or below in Spencer, IA: 49 days, from Monday 1 January to Sunday 18 February 1979.
  • The wettest month on record in Spencer, IA: September 2004, with 14.66 in of precipitation.
  • The driest month on record in Spencer, IA: February 1900, with 0.00 in of precipitation.
  • The wettest year on record in Spencer, IA: 1951, with 42.51 in of precipitation.
  • The driest year on record in Spencer, IA: 1958, with 14.41 in of precipitation.

Spencer, IA the day's answers