Record envelope, standing records and threshold days for Greensburg 2 S (USC00363510), Pennsylvania, United States, with 45 years of record.
Key Facts for Greensburg 2 S
Greensburg 2 S (USC00363510) is a weather station in Pennsylvania, United States at 40.27 latitude and -79.55 longitude, 299 m (981 ft) above sea level.
The station reports from 1908 to 1952, 45 years of record.
1,464 records set at Greensburg 2 S still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Greensburg 2 S set a daily record snowfall of 11.4 cm (4.5 in) on 1 March 1952.
About the Station
Location: Pennsylvania, United States, 40.27 latitude, -79.55 longitude.
Elevation: 299 m (981 ft).
Period of record: 1908 to 1952, 45 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 Greensburg 2 S. 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 Greensburg 2 S, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
24.4 C (75.9 F)
-30.0 C (-22.0 F)
n/a
n/a
Feb
24.4 C (75.9 F)
-28.9 C (-20.0 F)
n/a
n/a
Mar
30.0 C (86.0 F)
-19.4 C (-2.9 F)
n/a
n/a
Apr
34.4 C (93.9 F)
-18.9 C (-2.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-7.8 C (18.0 F)
n/a
n/a
Jun
37.2 C (99.0 F)
-0.6 C (30.9 F)
n/a
n/a
Jul
39.4 C (102.9 F)
2.8 C (37.0 F)
n/a
n/a
Aug
39.4 C (102.9 F)
1.7 C (35.1 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-3.3 C (26.1 F)
n/a
n/a
Oct
33.9 C (93.0 F)
-6.7 C (19.9 F)
n/a
n/a
Nov
28.3 C (82.9 F)
-17.2 C (1.0 F)
n/a
n/a
Dec
22.8 C (73.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Greensburg 2 S still stand. 1925 holds the most, with 56.
Standing records at Greensburg 2 S by the year they were set
Year set
Standing records
1908
15
1909
22
1910
30
1911
38
1912
27
1913
27
1914
53
1915
26
1916
34
1917
48
1918
47
1919
26
1920
20
1921
19
1922
29
1923
28
1924
27
1925
56
1926
30
1927
49
1928
26
1929
38
1930
51
1931
37
1932
33
1933
35
1934
34
1935
28
1936
55
1937
24
1938
25
1939
29
1940
37
1941
36
1942
27
1943
43
1944
27
1945
39
1946
33
1947
28
1948
28
1949
26
1950
40
1951
30
1952
4
All-Time Record Progression
2 new records
2 all-time records were set at Greensburg 2 S between 26 January 1948 and 25 November 1950. Each dot is a new record.
When Greensburg 2 S set new all-time records
Date
Kind
Detail
1948-01-26
Record low minimum temperature
Record low minimum temperature -30.0 C (-22.0 F)
1950-11-25
Record daily snowfall
Record daily snowfall 55.9 cm (22.0 in)
Wettest Day of Each Month
Jun: 104.9 mm (4.1 in)
The wettest day on record for each calendar month at Greensburg 2 S. The most was 104.9 mm (4.1 in) on 29 June 1924.
Record daily precipitation for each month at Greensburg 2 S
Month
Record daily precipitation (mm)
Date
Jan
39.4 mm (1.6 in)
3 January 1924
Feb
37.6 mm (1.5 in)
1 February 1951
Mar
70.6 mm (2.8 in)
17 March 1936
Apr
63.2 mm (2.5 in)
9 April 1942
May
59.2 mm (2.3 in)
26 May 1918
Jun
104.9 mm (4.1 in)
29 June 1924
Jul
66.8 mm (2.6 in)
31 July 1941
Aug
99.1 mm (3.9 in)
13 August 1943
Sep
81.3 mm (3.2 in)
15 September 1911
Oct
62.5 mm (2.5 in)
2 October 1929
Nov
50.8 mm (2.0 in)
25 November 1950
Dec
46.5 mm (1.8 in)
30 December 1942
Period of Record Coverage
1908 to 1952
Complete yearUnder 90 percent of days
45 years of record at Greensburg 2 S, 1908 to 1952. 3 years have data for under 90 percent of days and are left out of rankings: 1908, 1923, 1952.
Cooler than the station meanWarmer than the station mean
One stripe for each of 39 complete years at Greensburg 2 S, 1909 to 1951. Blue stripes are years cooler than the station's own mean of 10.9 C (51.6 F); red stripes are warmer. The coolest year was 1917, at 8.9 C (48.0 F), and the warmest was 1921, at 12.6 C (54.6 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Greensburg 2 S as warming stripes, 1909 to 1951
Year
Annual mean temperature
Difference from the station mean
1909
10.6 C
-0.31 C
1910
10.5 C
-0.42 C
1911
11.7 C
+0.82 C
1912
10.1 C
-0.79 C
1913
11.4 C
+0.52 C
1914
10.2 C
-0.66 C
1915
10.5 C
-0.37 C
1916
10.4 C
-0.55 C
1917
8.9 C
-2.00 C
1918
10.8 C
-0.10 C
1919
11.3 C
+0.37 C
1920
10.2 C
-0.74 C
1921
12.6 C
+1.66 C
1922
11.7 C
+0.84 C
1924
9.8 C
-1.14 C
1925
11.0 C
+0.09 C
1926
10.3 C
-0.56 C
1927
11.4 C
+0.53 C
1928
10.9 C
+0.04 C
1929
10.9 C
-0.03 C
1930
11.7 C
+0.76 C
1931
12.4 C
+1.48 C
1932
11.9 C
+0.99 C
1933
12.0 C
+1.06 C
1934
11.1 C
+0.21 C
1935
10.5 C
-0.38 C
1936
11.1 C
+0.20 C
1937
10.9 C
0.00 C
1938
11.8 C
+0.93 C
1939
11.6 C
+0.70 C
1940
10.3 C
-0.57 C
1941
11.7 C
+0.77 C
1942
11.3 C
+0.40 C
1943
10.1 C
-0.79 C
1944
10.1 C
-0.77 C
1945
10.4 C
-0.49 C
1948
10.4 C
-0.47 C
1950
10.1 C
-0.84 C
1951
10.6 C
-0.30 C
The fitted trend in annual mean temperature here over 1909 to 1951 is 0.02 C (-0.19 to 0.24) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.04 F (-0.34 to 0.42) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Greensburg 2 S
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.02 C (-0.19 to 0.24) per decade
0.04 F (-0.34 to 0.42) per decade
1909 to 1951
39
Not clearly different from zero
Mean daily maximum
0.23 C (0.01 to 0.44) per decade
0.41 F (0.01 to 0.80) per decade
1909 to 1951
39
Rise
Mean daily minimum
-0.2 C (-0.4 to 0.1) per decade
-0.3 F (-0.8 to 0.1) per decade
1909 to 1951
39
Not clearly different from zero
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
1908 to 1952
Yearly extremes at Greensburg 2 S: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
39.4 C (102.9 F)
1918
34.4 C (93.9 F)
45
Coldest night (TNn)
-30.0 C (-22.0 F)
1948
-19.4 C (-2.9 F)
45
Wettest day (Rx1day)
104.9 mm (4.1 in)
1924
52.3 mm (2.1 in)
45
Wettest five days (Rx5day)
129.9 mm (5.1 in)
1935
85.3 mm (3.4 in)
45
Longest dry spell (CDD)
31 days
1924
16 days
45
Hottest day (TXx)
The hottest day of the year at Greensburg 2 S, 1908 to 1952. The record is 39.4 C (102.9 F) in 1918, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Greensburg 2 S by year
Year
Hottest day (TXx)
1908
34.4 C (93.9 F)
1909
32.8 C (91.0 F)
1910
32.2 C (90.0 F)
1911
36.7 C (98.1 F)
1912
32.2 C (90.0 F)
1913
33.3 C (91.9 F)
1914
34.4 C (93.9 F)
1915
31.7 C (89.1 F)
1916
35.0 C (95.0 F)
1917
33.3 C (91.9 F)
1918
39.4 C (102.9 F)
1919
35.6 C (96.1 F)
1920
31.7 C (89.1 F)
1921
34.4 C (93.9 F)
1922
34.4 C (93.9 F)
1923
35.0 C (95.0 F)
1924
35.0 C (95.0 F)
1925
35.0 C (95.0 F)
1926
37.2 C (99.0 F)
1927
34.4 C (93.9 F)
1928
34.4 C (93.9 F)
1929
33.9 C (93.0 F)
1930
38.9 C (102.0 F)
1931
36.7 C (98.1 F)
1932
36.7 C (98.1 F)
1933
36.7 C (98.1 F)
1934
37.2 C (99.0 F)
1935
33.9 C (93.0 F)
1936
39.4 C (102.9 F)
1937
33.9 C (93.0 F)
1938
34.4 C (93.9 F)
1939
36.1 C (97.0 F)
1940
34.4 C (93.9 F)
1941
36.1 C (97.0 F)
1942
35.6 C (96.1 F)
1943
33.9 C (93.0 F)
1944
33.9 C (93.0 F)
1945
32.8 C (91.0 F)
1946
33.3 C (91.9 F)
1947
32.8 C (91.0 F)
1948
36.7 C (98.1 F)
1949
35.0 C (95.0 F)
1950
31.1 C (88.0 F)
1951
32.2 C (90.0 F)
1952
21.1 C (70.0 F)
Coldest night (TNn)
The coldest night of the year at Greensburg 2 S, 1908 to 1952. The record is -30.0 C (-22.0 F) in 1948, marked on the chart; the median year is -19.4 C (-2.9 F).
Coldest night (TNn) at Greensburg 2 S by year
Year
Coldest night (TNn)
1908
-10.0 C (14.0 F)
1909
-18.9 C (-2.0 F)
1910
-19.4 C (-2.9 F)
1911
-15.6 C (3.9 F)
1912
-27.8 C (-18.0 F)
1913
-15.6 C (3.9 F)
1914
-25.0 C (-13.0 F)
1915
-17.8 C (0.0 F)
1916
-25.6 C (-14.1 F)
1917
-26.1 C (-15.0 F)
1918
-25.0 C (-13.0 F)
1919
-21.7 C (-7.1 F)
1920
-18.9 C (-2.0 F)
1921
-16.7 C (1.9 F)
1922
-19.4 C (-2.9 F)
1923
-18.9 C (-2.0 F)
1924
-19.4 C (-2.9 F)
1925
-24.4 C (-11.9 F)
1926
-21.1 C (-6.0 F)
1927
-18.3 C (-0.9 F)
1928
-17.2 C (1.0 F)
1929
-22.2 C (-8.0 F)
1930
-19.4 C (-2.9 F)
1931
-13.3 C (8.1 F)
1932
-20.6 C (-5.1 F)
1933
-19.4 C (-2.9 F)
1934
-26.1 C (-15.0 F)
1935
-20.0 C (-4.0 F)
1936
-25.6 C (-14.1 F)
1937
-16.1 C (3.0 F)
1938
-12.2 C (10.0 F)
1939
-14.4 C (6.1 F)
1940
-21.7 C (-7.1 F)
1941
-16.1 C (3.0 F)
1942
-24.4 C (-11.9 F)
1943
-23.3 C (-9.9 F)
1944
-26.1 C (-15.0 F)
1945
-23.9 C (-11.0 F)
1946
-18.9 C (-2.0 F)
1947
-17.8 C (0.0 F)
1948
-30.0 C (-22.0 F)
1949
-15.6 C (3.9 F)
1950
-23.3 C (-9.9 F)
1951
-25.6 C (-14.1 F)
1952
-16.7 C (1.9 F)
Wettest day (Rx1day)
The wettest day of the year at Greensburg 2 S, 1908 to 1952. The record is 104.9 mm (4.1 in) in 1924, marked on the chart; the median year is 52.3 mm (2.1 in).
Wettest day (Rx1day) at Greensburg 2 S by year
Year
Wettest day (Rx1day)
1908
24.4 mm (1.0 in)
1909
53.1 mm (2.1 in)
1910
39.9 mm (1.6 in)
1911
81.3 mm (3.2 in)
1912
85.1 mm (3.4 in)
1913
38.4 mm (1.5 in)
1914
48.5 mm (1.9 in)
1915
35.1 mm (1.4 in)
1916
48.3 mm (1.9 in)
1917
84.8 mm (3.3 in)
1918
59.2 mm (2.3 in)
1919
59.2 mm (2.3 in)
1920
56.6 mm (2.2 in)
1921
67.8 mm (2.7 in)
1922
52.3 mm (2.1 in)
1923
34.3 mm (1.4 in)
1924
104.9 mm (4.1 in)
1925
35.1 mm (1.4 in)
1926
56.1 mm (2.2 in)
1927
62.5 mm (2.5 in)
1928
48.8 mm (1.9 in)
1929
62.5 mm (2.5 in)
1930
53.3 mm (2.1 in)
1931
48.0 mm (1.9 in)
1932
35.6 mm (1.4 in)
1933
33.8 mm (1.3 in)
1934
44.7 mm (1.8 in)
1935
61.5 mm (2.4 in)
1936
70.6 mm (2.8 in)
1937
38.9 mm (1.5 in)
1938
35.6 mm (1.4 in)
1939
34.0 mm (1.3 in)
1940
44.5 mm (1.8 in)
1941
72.4 mm (2.9 in)
1942
63.2 mm (2.5 in)
1943
99.1 mm (3.9 in)
1944
43.2 mm (1.7 in)
1945
59.2 mm (2.3 in)
1946
46.2 mm (1.8 in)
1947
52.3 mm (2.1 in)
1948
66.5 mm (2.6 in)
1949
41.9 mm (1.6 in)
1950
55.1 mm (2.2 in)
1951
53.1 mm (2.1 in)
1952
38.1 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Greensburg 2 S, 1908 to 1952. The record is 129.9 mm (5.1 in) in 1935, marked on the chart; the median year is 85.3 mm (3.4 in).
Wettest five days (Rx5day) at Greensburg 2 S by year
Year
Wettest five days (Rx5day)
1908
53.4 mm (2.1 in)
1909
78.5 mm (3.1 in)
1910
67.3 mm (2.6 in)
1911
105.7 mm (4.2 in)
1912
115.9 mm (4.6 in)
1913
64.5 mm (2.5 in)
1914
60.7 mm (2.4 in)
1915
76.7 mm (3.0 in)
1916
59.2 mm (2.3 in)
1917
104.1 mm (4.1 in)
1918
122.7 mm (4.8 in)
1919
85.3 mm (3.4 in)
1920
102.1 mm (4.0 in)
1921
110.0 mm (4.3 in)
1922
80.1 mm (3.2 in)
1923
74.2 mm (2.9 in)
1924
113.8 mm (4.5 in)
1925
52.1 mm (2.1 in)
1926
122.3 mm (4.8 in)
1927
89.4 mm (3.5 in)
1928
65.9 mm (2.6 in)
1929
85.9 mm (3.4 in)
1930
71.9 mm (2.8 in)
1931
69.6 mm (2.7 in)
1932
57.9 mm (2.3 in)
1933
71.6 mm (2.8 in)
1934
85.1 mm (3.4 in)
1935
129.9 mm (5.1 in)
1936
124.7 mm (4.9 in)
1937
96.8 mm (3.8 in)
1938
60.0 mm (2.4 in)
1939
88.4 mm (3.5 in)
1940
73.2 mm (2.9 in)
1941
115.6 mm (4.6 in)
1942
94.5 mm (3.7 in)
1943
100.9 mm (4.0 in)
1944
79.8 mm (3.1 in)
1945
92.7 mm (3.6 in)
1946
64.3 mm (2.5 in)
1947
101.3 mm (4.0 in)
1948
112.0 mm (4.4 in)
1949
65.6 mm (2.6 in)
1950
85.3 mm (3.4 in)
1951
121.9 mm (4.8 in)
1952
64.3 mm (2.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Greensburg 2 S, 1908 to 1952. The record is 31 days in 1924, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Greensburg 2 S by year
Year
Longest dry spell (CDD)
1908
21 days
1909
15 days
1910
22 days
1911
11 days
1912
16 days
1913
11 days
1914
19 days
1915
11 days
1916
16 days
1917
22 days
1918
19 days
1919
11 days
1920
23 days
1921
12 days
1922
25 days
1923
15 days
1924
31 days
1925
19 days
1926
9 days
1927
13 days
1928
12 days
1929
15 days
1930
19 days
1931
10 days
1932
19 days
1933
12 days
1934
19 days
1935
11 days
1936
16 days
1937
9 days
1938
13 days
1939
25 days
1940
11 days
1941
17 days
1942
17 days
1943
26 days
1944
18 days
1945
15 days
1946
18 days
1947
17 days
1948
11 days
1949
10 days
1950
13 days
1951
19 days
1952
9 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
39 years with a frost
Across 39 years with a frost, the median last spring frost at Greensburg 2 S falls on 4 May and the median first autumn frost on 9 October, which leaves a median of 154 days between them.
Fitted over all years, the growing season changes by -3.3 days per decade at this station.
Frost dates and growing season at Greensburg 2 S
Measure
Median, all years
Earliest period
Recent period (1918 to 1951)
Recent against earliest
Fitted trend
Last spring frost
4 May
n/a
4 May
n/a
+1.4 days per decade
First autumn frost
9 October
n/a
8 October
n/a
-1.9 days per decade
Growing days
154 days
n/a
159 days
n/a
-3.3 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
42 years, 1909 to 1951
A day with at least 52.1 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 113.9 mm (4.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Greensburg 2 S: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
52.1 mm (2.1 in)
5 years
67.6 mm (2.7 in)
10 years
78.3 mm (3.1 in)
25 years
92.2 mm (3.6 in)
50 years
103.0 mm (4.1 in)
Longer than the 42 years of record
100 years
113.9 mm (4.5 in)
Longer than the 42 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, 42 years of values from 1909 to 1951.
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: 104.9 mm (4.1 in) in 1924; 99.1 mm (3.9 in) in 1943; 85.1 mm (3.4 in) in 1912.
Download the Data
Data for Greensburg 2 S standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Greensburg 2 S 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.