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Earliest and Latest Days of 100° F in Castle Rock
This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in
Castle Rock, Colorado
history. It is based on NOAA data from the years 1893–2024.
Also see:
Longest streaks of 100°
Years with most 100° days
Change city
Change temperature
Earliest 100 degree day in Castle Rock?
The earliest in the year that Castle Rock, Colorado had a high temperature of at least 100 °F is
June 12
which happened in 2022.
Latest 100 degree day in Castle Rock?
The latest in the year that Castle Rock, Colorado had a high temperature of at least 100 °F is
September 12
which happened in 2021.
Earliest Days ≥ 100 °F
Date
Year
Temperature
June 12
2022
101 °F
June 14
2022
100 °F
June 16
2021
101 °F
June 18
2021
100 °F
June 27
2012
100 °F
July 2
2012
100 °F
July 3
2012
100 °F
July 10
2022
101 °F
July 11
2022
102 °F
July 18
2022
100 °F
July 19
2022
100 °F
September 12
2021
101 °F
Latest Days ≥ 100 °F
Date
Year
Temperature
September 12
2021
101 °F
July 19
2022
100 °F
July 18
2022
100 °F
July 11
2022
102 °F
July 10
2022
101 °F
July 3
2012
100 °F
July 2
2012
100 °F
June 27
2012
100 °F
June 18
2021
100 °F
June 16
2021
101 °F
June 14
2022
100 °F
June 12
2022
101 °F