Last Frost Day

Frost history / Hill City Muni Ap, KS

Hill City Muni Ap, KS: frost dates by year

Last spring and first fall frost at NOAA station USW00093990, 1951 to 2024, measured from daily minimum temperatures.

Elevation 2,188 ft, 39.376, -99.830. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 24Oct 11
EarliestApr 5 (1969)Sep 13 (1974)
LatestMay 18 (2002)Oct 31 (1963)
Trendlittle change (less than half a day per decade)little change (less than half a day per decade)
Years with data5958

At 28°F (hard freeze) the median last spring date is Apr 15 and the median first fall date is Oct 23.

The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.

Chart

Last spring frost (32°F)

Mar 31Apr 15Apr 30May 15May 3019601970198019902000201020201951: May 71952: May 111953: May 141954: May 31955: Apr 201956: Apr 291957: Apr 131958: Apr 241959: Apr 221960: Apr 301961: May 21962: Apr 131963: Apr 231964: Apr 141965: Apr 281966: May 131967: May 41968: Apr 241969: Apr 51970: Apr 231971: Apr 61972: Apr 91973: May 151974: Apr 161975: Apr 191976: May 71977: Apr 51978: Apr 251979: May 111980: Apr 151981: May 101997: May 131998: Apr 221999: Apr 182000: Apr 212001: Apr 172002: May 182003: Apr 92004: Apr 132005: May 32006: Apr 262007: Apr 152008: May 112009: Apr 282010: Apr 82011: May 32012: Apr 232013: May 42014: Apr 172015: May 122016: Apr 122017: Apr 272018: Apr 262019: May 102020: May 102021: Apr 212022: Apr 162023: May 22024: Apr 21

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 281952: Oct 61953: Oct 61954: Oct 151955: Oct 231956: Oct 211957: Oct 241958: Sep 301959: Oct 111960: Oct 191961: Sep 251962: Oct 241963: Oct 311964: Oct 51965: Oct 221966: Oct 11967: Sep 281968: Oct 281969: Oct 121970: Oct 81971: Sep 231972: Oct 181973: Oct 121974: Sep 131975: Oct 11976: Sep 281977: Oct 111978: Oct 61979: Oct 231980: Oct 31981: Oct 191997: Oct 251998: Oct 121999: Oct 42000: Sep 242002: Oct 132003: Oct 12004: Oct 142005: Sep 292006: Oct 142007: Oct 232008: Oct 242009: Oct 32010: Oct 282011: Oct 202012: Oct 62013: Oct 162014: Oct 42015: Oct 292016: Oct 72017: Oct 112018: Oct 112019: Oct 102020: Oct 22021: Oct 162022: Oct 172023: Oct 62024: Oct 14

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

YearLast spring 32°FFirst fall 32°FLast spring 28°FFirst fall 28°F
2024Apr 21Oct 14Mar 18Oct 15
2023May 2Oct 6Apr 23Oct 7
2022Apr 16Oct 17Apr 16Oct 19
2021Apr 21Oct 16Apr 21Nov 4
2020May 10Oct 2Apr 17Oct 24
2019May 10Oct 10Apr 14Oct 11
2018Apr 26Oct 11Apr 19Oct 14
2017Apr 27Oct 11Apr 27Oct 27
2016Apr 12Oct 7Apr 1Nov 10
2015May 12Oct 29Mar 26Nov 7
2014Apr 17Oct 4Apr 15Oct 29
2013May 4Oct 16Apr 25Nov 7
2012Apr 23Oct 6Mar 9Oct 7
2011May 3Oct 20Mar 25Oct 20
2010Apr 8Oct 28Apr 3Nov 4
2009Apr 28Oct 3Apr 11Oct 9
2008May 11Oct 24Apr 14Oct 27
2007Apr 15Oct 23Apr 12Oct 26
2006Apr 26Oct 14Apr 26Oct 18
2005May 3Sep 29May 2Oct 23
2004Apr 13Oct 14Apr 13Nov 2
2003Apr 9Oct 1Apr 9Oct 25
2002May 18Oct 13Apr 25Oct 23
2001Apr 17no dataApr 17no data
2000Apr 21Sep 24Apr 21Oct 7
1999Apr 18Oct 4Apr 17Oct 17
1998Apr 22Oct 12Apr 17Oct 22
1997May 13Oct 25Apr 13Oct 25
1981May 10Oct 19Mar 23Oct 22
1980Apr 15Oct 3Apr 14Oct 24
1979May 11Oct 23May 11Oct 23
1978Apr 25Oct 6Apr 21Oct 14
1977Apr 5Oct 11Apr 5Oct 12
1976May 7Sep 28May 3Oct 16
1975Apr 19Oct 1Apr 12Oct 18
1974Apr 16Sep 13Apr 16Oct 15
1973May 15Oct 12Apr 16Oct 28
1972Apr 9Oct 18Apr 9Oct 18
1971Apr 6Sep 23Apr 6Oct 31
1970Apr 23Oct 8Apr 14Oct 16
1969Apr 5Oct 12Mar 30Oct 13
1968Apr 24Oct 28Apr 24Oct 28
1967May 4Sep 28May 2Oct 25
1966May 13Oct 1May 13Oct 16
1965Apr 28Oct 22Apr 28Nov 9
1964Apr 14Oct 5Apr 8Oct 5
1963Apr 23Oct 31Apr 4Nov 1
1962Apr 13Oct 24Apr 5Oct 25
1961May 2Sep 25Apr 17Oct 23
1960Apr 30Oct 19Mar 25Oct 31
1959Apr 22Oct 11Apr 22Oct 26
1958Apr 24Sep 30Apr 7Oct 30
1957Apr 13Oct 24Apr 12Oct 25
1956Apr 29Oct 21Apr 29Nov 4
1955Apr 20Oct 23Apr 7Oct 23
1954May 3Oct 15May 3Oct 27
1953May 14Oct 6May 14Nov 6
1952May 11Oct 6Apr 14Oct 6
1951May 7Sep 28May 7Oct 19

"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991 to 2020 frost probabilities.