Last Frost Day

Frost history / Renovo, PA

Renovo, PA: frost dates by year

Last spring and first fall frost at NOAA station USC00367409, 1961 to 2025, measured from daily minimum temperatures.

Elevation 660 ft, 41.330, -77.738. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 7Oct 18
EarliestApr 7 (2011)Sep 14 (1964)
LatestMay 28 (1969)Nov 4 (2021)
Trend1.7 days earlier per decade2.2 days later per decade
Years with data5555

At 28°F (hard freeze) the median last spring date is Apr 18 and the median first fall date is Oct 30.

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 30Jun 141970198019902000201020201962: May 111963: May 251964: May 41965: Apr 301966: May 121967: May 171968: May 81969: May 281970: May 81971: May 241980: May 101981: May 81982: Apr 291983: May 181984: May 171985: May 41987: May 161988: May 41989: May 41990: May 131991: Apr 131992: Apr 291993: Apr 281994: May 141995: Apr 261996: May 151997: May 91998: Apr 291999: Apr 272000: May 172001: Apr 302002: May 232003: Apr 242004: Apr 282005: May 62006: May 72007: Apr 202008: May 22009: May 212010: May 112011: Apr 72012: May 12013: May 152014: Apr 282015: May 242016: May 172017: May 92018: Apr 302019: Apr 302020: May 142021: Apr 272022: May 12023: May 182024: Apr 272025: Apr 18

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 111970198019902000201020201961: Oct 231962: Oct 181963: Sep 241964: Sep 141965: Sep 281966: Oct 111967: Oct 201968: Oct 61969: Oct 151970: Oct 61971: Oct 191980: Oct 161981: Oct 171982: Oct 181983: Oct 221984: Nov 31985: Oct 261987: Oct 141988: Oct 131989: Oct 101990: Oct 271991: Sep 301992: Oct 181993: Oct 11994: Oct 111995: Oct 171996: Oct 41997: Oct 171998: Oct 22000: Oct 92001: Oct 92002: Oct 222003: Oct 252004: Nov 42005: Oct 262006: Oct 132007: Oct 292008: Oct 182009: Oct 122010: Oct 232011: Oct 282012: Oct 132013: Oct 262014: Oct 282015: Oct 192016: Oct 262017: Oct 272018: Oct 192019: Nov 22020: Sep 222021: Nov 42022: Oct 182023: Oct 232024: Oct 252025: Oct 10

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
2025Apr 18Oct 10Apr 18Oct 27
2024Apr 27Oct 25Apr 23Oct 27
2023May 18Oct 23Apr 10Nov 2
2022May 1Oct 18Apr 29Oct 21
2021Apr 27Nov 4Apr 24Nov 5
2020May 14Sep 22May 10Nov 19
2019Apr 30Nov 2Apr 4Nov 4
2018Apr 30Oct 19Apr 30Nov 12
2017May 9Oct 27Apr 9Nov 9
2016May 17Oct 26Apr 14Nov 12
2015May 24Oct 19Apr 3Nov 21
2014Apr 28Oct 28Apr 24Nov 8
2013May 15Oct 26May 14Oct 26
2012May 1Oct 13Apr 13Oct 13
2011Apr 7Oct 28Apr 7Nov 5
2010May 11Oct 23Mar 28Nov 2
2009May 21Oct 12May 19Nov 7
2008May 2Oct 18Apr 16Oct 19
2007Apr 20Oct 29Apr 14Nov 3
2006May 7Oct 13Apr 10Nov 4
2005May 6Oct 26Mar 22Nov 12
2004Apr 28Nov 4Apr 6Nov 9
2003Apr 24Oct 25Apr 2Nov 9
2002May 23Oct 22Apr 13Nov 8
2001Apr 30Oct 9Apr 20Oct 9
2000May 17Oct 9May 16Oct 29
1999Apr 27no dataApr 26no data
1998Apr 29Oct 2Apr 28Oct 24
1997May 9Oct 17May 8Oct 17
1996May 15Oct 4May 14Nov 2
1995Apr 26Oct 17Apr 17Nov 5
1994May 14Oct 11Apr 22Nov 11
1993Apr 28Oct 1Mar 21Oct 11
1992Apr 29Oct 18Apr 14Oct 20
1991Apr 13Sep 30Apr 4Oct 30
1990May 13Oct 27Apr 14Oct 27
1989May 4Oct 10Apr 24Nov 4
1988May 4Oct 13Apr 22Oct 27
1987May 16Oct 14May 8Oct 26
1985May 4Oct 26Apr 12Oct 29
1984May 17Nov 3Apr 11Nov 3
1983May 18Oct 22Apr 20Oct 30
1982Apr 29Oct 18Apr 10Oct 24
1981May 8Oct 17Apr 21Oct 20
1980May 10Oct 16Apr 17Oct 23
1971May 24Oct 19Apr 19Nov 4
1970May 8Oct 6May 7Oct 17
1969May 28Oct 15Apr 21Oct 23
1968May 8Oct 6Apr 8Oct 31
1967May 17Oct 20Apr 29Oct 29
1966May 12Oct 11May 11Oct 30
1965Apr 30Sep 28Apr 6Oct 6
1964May 4Sep 14Apr 16Oct 7
1963May 25Sep 24May 25Nov 4
1962May 11Oct 18Apr 21Oct 25
1961no dataOct 23no dataNov 2

"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.