Record envelope, standing records and threshold days for Grove City (USC00363542), Pennsylvania, United States, with 36 years of record.
Key Facts for Grove City
Grove City (USC00363542) is a weather station in Pennsylvania, United States at 41.15 latitude and -80.07 longitude, 412 m (1,350 ft) above sea level.
The station reports from 1907 to 1942, 36 years of record.
1,464 records set at Grove City still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Grove City set a daily record low minimum temperature of -19.4 C (-2.9 F) on 21 December 1942.
About the Station
Location: Pennsylvania, United States, 41.15 latitude, -80.07 longitude.
Elevation: 412 m (1,350 ft).
Period of record: 1907 to 1942, 36 years.
Eligible elements: tmax, tmin, prcp, snow.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Grove City. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Grove City, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
19.4 C (66.9 F)
-35.6 C (-32.1 F)
n/a
n/a
Feb
21.7 C (71.1 F)
-29.4 C (-20.9 F)
n/a
n/a
Mar
27.8 C (82.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Apr
31.7 C (89.1 F)
-17.2 C (1.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
36.1 C (97.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jul
38.9 C (102.0 F)
5.0 C (41.0 F)
n/a
n/a
Aug
38.9 C (102.0 F)
1.7 C (35.1 F)
n/a
n/a
Sep
35.0 C (95.0 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-7.8 C (18.0 F)
n/a
n/a
Nov
27.2 C (81.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Dec
22.2 C (72.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Grove City still stand. 1914 holds the most, with 67.
Standing records at Grove City by the year they were set
Year set
Standing records
1907
48
1908
38
1909
38
1910
48
1911
45
1912
37
1913
47
1914
67
1915
26
1916
57
1917
54
1918
57
1919
35
1920
33
1921
31
1922
34
1923
40
1924
30
1925
46
1926
44
1927
49
1928
30
1929
39
1930
46
1931
30
1932
42
1933
44
1934
38
1935
39
1936
44
1937
29
1938
36
1939
27
1940
40
1941
35
1942
41
All-Time Record Progression
1 new records
1 all-time records were set at Grove City between 3 March 1942 and 3 March 1942. Each dot is a new record.
When Grove City set new all-time records
Date
Kind
Detail
1942-03-03
Record daily snowfall
Record daily snowfall 33.0 cm (13.0 in)
Wettest Day of Each Month
Aug: 118.1 mm (4.6 in)
The wettest day on record for each calendar month at Grove City. The most was 118.1 mm (4.6 in) on 9 August 1934.
Record daily precipitation for each month at Grove City
Month
Record daily precipitation (mm)
Date
Jan
45.5 mm (1.8 in)
25 January 1937
Feb
27.4 mm (1.1 in)
12 February 1910
Mar
62.2 mm (2.4 in)
27 March 1907
Apr
50.3 mm (2.0 in)
5 April 1929
May
109.2 mm (4.3 in)
31 May 1926
Jun
74.9 mm (2.9 in)
16 June 1912
Jul
70.6 mm (2.8 in)
25 July 1935
Aug
118.1 mm (4.6 in)
9 August 1934
Sep
79.5 mm (3.1 in)
24 September 1910
Oct
81.8 mm (3.2 in)
1 October 1911
Nov
62.5 mm (2.5 in)
1 November 1921
Dec
74.7 mm (2.9 in)
13 December 1927
Period of Record Coverage
1907 to 1942
Complete yearUnder 90 percent of days
36 years of record at Grove City, 1907 to 1942. Every year has data for at least 90 percent of its days.
Cooler than the station meanWarmer than the station mean
One stripe for each of 34 complete years at Grove City, 1907 to 1942. Blue stripes are years cooler than the station's own mean of 9.5 C (49.1 F); red stripes are warmer. The coolest year was 1917, at 7.6 C (45.6 F), and the warmest was 1921, at 11.4 C (52.5 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Grove City as warming stripes, 1907 to 1942
Year
Annual mean temperature
Difference from the station mean
1907
8.4 C
-1.11 C
1908
9.7 C
+0.19 C
1909
9.2 C
-0.35 C
1910
8.9 C
-0.66 C
1911
10.1 C
+0.53 C
1912
8.7 C
-0.86 C
1913
10.1 C
+0.55 C
1914
9.1 C
-0.42 C
1915
8.9 C
-0.59 C
1916
9.0 C
-0.49 C
1917
7.6 C
-1.97 C
1918
9.4 C
-0.09 C
1919
10.0 C
+0.49 C
1920
8.7 C
-0.80 C
1921
11.4 C
+1.87 C
1922
10.4 C
+0.83 C
1923
9.8 C
+0.29 C
1924
8.5 C
-1.03 C
1925
9.5 C
-0.04 C
1926
8.5 C
-1.06 C
1927
9.2 C
-0.37 C
1928
9.5 C
-0.05 C
1929
9.4 C
-0.12 C
1930
10.1 C
+0.60 C
1931
10.9 C
+1.37 C
1933
11.0 C
+1.46 C
1934
9.6 C
+0.04 C
1935
9.6 C
+0.02 C
1936
9.5 C
+0.00 C
1937
9.3 C
-0.21 C
1938
10.8 C
+1.24 C
1939
10.5 C
+0.92 C
1940
8.7 C
-0.79 C
1942
10.0 C
+0.49 C
The fitted trend in annual mean temperature here over 1907 to 1942 is 0.27 C (0.00 to 0.55) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.49 F (0.00 to 0.98) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Grove City
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.27 C (0.00 to 0.55) per decade
0.49 F (0.00 to 0.98) per decade
1907 to 1942
34
Not clearly different from zero
Mean daily maximum
0.1 C (-0.2 to 0.4) per decade
0.2 F (-0.4 to 0.7) per decade
1907 to 1942
34
Not clearly different from zero
Mean daily minimum
0.5 C (0.2 to 0.7) per decade
0.8 F (0.3 to 1.3) per decade
1907 to 1942
34
Rise
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1907 to 1942
Yearly extremes at Grove City: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.9 C (102.0 F)
1918
34.4 C (93.9 F)
36
Coldest night (TNn)
-35.6 C (-32.1 F)
1912
-23.3 C (-9.9 F)
36
Wettest day (Rx1day)
118.1 mm (4.6 in)
1934
55.3 mm (2.2 in)
36
Wettest five days (Rx5day)
159.0 mm (6.3 in)
1927
86.4 mm (3.4 in)
36
Longest dry spell (CDD)
29 days
1918
14 days
36
Hottest day (TXx)
The hottest day of the year at Grove City, 1907 to 1942. The record is 38.9 C (102.0 F) in 1918, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Grove City by year
Year
Hottest day (TXx)
1907
32.2 C (90.0 F)
1908
34.4 C (93.9 F)
1909
32.8 C (91.0 F)
1910
32.2 C (90.0 F)
1911
37.8 C (100.0 F)
1912
33.9 C (93.0 F)
1913
34.4 C (93.9 F)
1914
35.0 C (95.0 F)
1915
32.2 C (90.0 F)
1916
36.1 C (97.0 F)
1917
35.0 C (95.0 F)
1918
38.9 C (102.0 F)
1919
35.0 C (95.0 F)
1920
31.7 C (89.1 F)
1921
33.9 C (93.0 F)
1922
33.9 C (93.0 F)
1923
34.4 C (93.9 F)
1924
34.4 C (93.9 F)
1925
35.6 C (96.1 F)
1926
34.4 C (93.9 F)
1927
33.3 C (91.9 F)
1928
31.1 C (88.0 F)
1929
32.8 C (91.0 F)
1930
36.7 C (98.1 F)
1931
35.0 C (95.0 F)
1932
35.0 C (95.0 F)
1933
36.1 C (97.0 F)
1934
34.4 C (93.9 F)
1935
35.0 C (95.0 F)
1936
38.9 C (102.0 F)
1937
34.4 C (93.9 F)
1938
34.4 C (93.9 F)
1939
35.0 C (95.0 F)
1940
35.6 C (96.1 F)
1941
36.7 C (98.1 F)
1942
33.9 C (93.0 F)
Coldest night (TNn)
The coldest night of the year at Grove City, 1907 to 1942. The record is -35.6 C (-32.1 F) in 1912, marked on the chart; the median year is -23.3 C (-9.9 F).
Coldest night (TNn) at Grove City by year
Year
Coldest night (TNn)
1907
-28.9 C (-20.0 F)
1908
-28.3 C (-18.9 F)
1909
-23.3 C (-9.9 F)
1910
-29.4 C (-20.9 F)
1911
-16.7 C (1.9 F)
1912
-35.6 C (-32.1 F)
1913
-19.4 C (-2.9 F)
1914
-28.9 C (-20.0 F)
1915
-27.8 C (-18.0 F)
1916
-28.9 C (-20.0 F)
1917
-29.4 C (-20.9 F)
1918
-30.6 C (-23.1 F)
1919
-23.3 C (-9.9 F)
1920
-24.4 C (-11.9 F)
1921
-16.7 C (1.9 F)
1922
-23.9 C (-11.0 F)
1923
-21.7 C (-7.1 F)
1924
-21.7 C (-7.1 F)
1925
-23.9 C (-11.0 F)
1926
-22.8 C (-9.0 F)
1927
-21.1 C (-6.0 F)
1928
-21.7 C (-7.1 F)
1929
-25.6 C (-14.1 F)
1930
-22.2 C (-8.0 F)
1931
-16.7 C (1.9 F)
1932
-20.0 C (-4.0 F)
1933
-19.4 C (-2.9 F)
1934
-28.3 C (-18.9 F)
1935
-21.1 C (-6.0 F)
1936
-26.1 C (-15.0 F)
1937
-17.8 C (0.0 F)
1938
-17.2 C (1.0 F)
1939
-18.9 C (-2.0 F)
1940
-24.4 C (-11.9 F)
1941
-16.1 C (3.0 F)
1942
-23.3 C (-9.9 F)
Wettest day (Rx1day)
The wettest day of the year at Grove City, 1907 to 1942. The record is 118.1 mm (4.6 in) in 1934, marked on the chart; the median year is 55.3 mm (2.2 in).
Wettest day (Rx1day) at Grove City by year
Year
Wettest day (Rx1day)
1907
62.2 mm (2.4 in)
1908
36.3 mm (1.4 in)
1909
39.4 mm (1.6 in)
1910
79.5 mm (3.1 in)
1911
81.8 mm (3.2 in)
1912
74.9 mm (2.9 in)
1913
57.2 mm (2.3 in)
1914
46.5 mm (1.8 in)
1915
38.4 mm (1.5 in)
1916
36.8 mm (1.4 in)
1917
61.5 mm (2.4 in)
1918
50.8 mm (2.0 in)
1919
55.6 mm (2.2 in)
1920
45.7 mm (1.8 in)
1921
67.3 mm (2.6 in)
1922
57.4 mm (2.3 in)
1923
63.5 mm (2.5 in)
1924
55.9 mm (2.2 in)
1925
53.3 mm (2.1 in)
1926
109.2 mm (4.3 in)
1927
74.7 mm (2.9 in)
1928
57.7 mm (2.3 in)
1929
54.9 mm (2.2 in)
1930
56.9 mm (2.2 in)
1931
45.7 mm (1.8 in)
1932
35.6 mm (1.4 in)
1933
25.7 mm (1.0 in)
1934
118.1 mm (4.6 in)
1935
70.6 mm (2.8 in)
1936
31.8 mm (1.3 in)
1937
47.2 mm (1.9 in)
1938
46.2 mm (1.8 in)
1939
68.1 mm (2.7 in)
1940
42.7 mm (1.7 in)
1941
45.5 mm (1.8 in)
1942
41.9 mm (1.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Grove City, 1907 to 1942. The record is 159.0 mm (6.3 in) in 1927, marked on the chart; the median year is 86.4 mm (3.4 in).
Wettest five days (Rx5day) at Grove City by year
Year
Wettest five days (Rx5day)
1907
95.9 mm (3.8 in)
1908
112.8 mm (4.4 in)
1909
81.1 mm (3.2 in)
1910
102.4 mm (4.0 in)
1911
134.6 mm (5.3 in)
1912
90.7 mm (3.6 in)
1913
121.2 mm (4.8 in)
1914
70.9 mm (2.8 in)
1915
87.3 mm (3.4 in)
1916
49.3 mm (1.9 in)
1917
98.1 mm (3.9 in)
1918
68.5 mm (2.7 in)
1919
74.1 mm (2.9 in)
1920
80.8 mm (3.2 in)
1921
89.2 mm (3.5 in)
1922
66.5 mm (2.6 in)
1923
94.7 mm (3.7 in)
1924
96.5 mm (3.8 in)
1925
92.0 mm (3.6 in)
1926
124.2 mm (4.9 in)
1927
159.0 mm (6.3 in)
1928
82.5 mm (3.2 in)
1929
85.4 mm (3.4 in)
1930
61.5 mm (2.4 in)
1931
67.5 mm (2.7 in)
1932
65.9 mm (2.6 in)
1933
56.4 mm (2.2 in)
1934
121.9 mm (4.8 in)
1935
127.8 mm (5.0 in)
1936
61.0 mm (2.4 in)
1937
109.5 mm (4.3 in)
1938
73.3 mm (2.9 in)
1939
95.0 mm (3.7 in)
1940
57.4 mm (2.3 in)
1941
80.3 mm (3.2 in)
1942
60.7 mm (2.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Grove City, 1907 to 1942. The record is 29 days in 1918, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at Grove City by year
Year
Longest dry spell (CDD)
1907
13 days
1908
21 days
1909
14 days
1910
14 days
1911
15 days
1912
11 days
1913
15 days
1914
15 days
1915
11 days
1916
12 days
1917
14 days
1918
29 days
1919
14 days
1920
24 days
1921
13 days
1922
25 days
1923
22 days
1924
23 days
1925
21 days
1926
13 days
1927
11 days
1928
13 days
1929
20 days
1930
12 days
1931
10 days
1932
20 days
1933
23 days
1934
14 days
1935
20 days
1936
11 days
1937
12 days
1938
17 days
1939
12 days
1940
12 days
1941
25 days
1942
20 days
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
34 years with a frost
Across 34 years with a frost, the median last spring frost at Grove City falls on 12 May and the median first autumn frost on 5 October, which leaves a median of 149 days between them.
Fitted over all years, the growing season changes by +9.0 days per decade at this station.
Frost dates and growing season at Grove City
Measure
Median, all years
Earliest period
Recent period (1911 to 1942)
Recent against earliest
Fitted trend
Last spring frost
12 May
n/a
12 May
n/a
-5.2 days per decade
First autumn frost
5 October
n/a
7 October
n/a
+3.8 days per decade
Growing days
149 days
n/a
149 days
n/a
+9.0 days per decade
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
36 years, 1907 to 1942
A day with at least 52.7 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 123.4 mm (4.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Grove City: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
52.7 mm (2.1 in)
5 years
69.8 mm (2.7 in)
10 years
81.9 mm (3.2 in)
25 years
97.9 mm (3.9 in)
50 years
110.4 mm (4.3 in)
Longer than the 36 years of record
100 years
123.4 mm (4.9 in)
Longer than the 36 years of record
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 36 years of values from 1907 to 1942.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 118.1 mm (4.6 in) in 1934; 109.2 mm (4.3 in) in 1926; 81.8 mm (3.2 in) in 1911.
Download the Data
Data for Grove City standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Grove City threshold days by year: CSV or JSON. Field meanings are on the data page.
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.