Connellsville Weather Records (USC00361723)

Record envelope, standing records and threshold days for Connellsville (USC00361723), Pennsylvania, United States, with 49 years of record.

Key Facts for Connellsville

Connellsville (USC00361723) is a weather station in Pennsylvania, United States at 40.02 latitude and -79.60 longitude, 265 m (870 ft) above sea level.
The station reports from 1928 to 1976, 49 years of record.
1,352 records set at Connellsville still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Connellsville set a daily record precipitation of 17.0 mm (0.7 in) on 6 February 1976.

About the Station

Location: Pennsylvania, United States, 40.02 latitude, -79.60 longitude.
Elevation: 265 m (870 ft).
Period of record: 1928 to 1976, 49 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Connellsville. 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 Connellsville, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	14.4 C (57.9 F)	-21.1 C (-6.0 F)	n/a	n/a
Feb	16.7 C (62.1 F)	-15.6 C (3.9 F)	n/a	n/a
Mar	28.9 C (84.0 F)	-11.1 C (12.0 F)	n/a	n/a
Apr	32.2 C (90.0 F)	-5.6 C (21.9 F)	n/a	n/a
May	33.3 C (91.9 F)	1.1 C (34.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	7.8 C (46.0 F)	n/a	n/a
Jul	38.9 C (102.0 F)	12.2 C (54.0 F)	n/a	n/a
Aug	38.9 C (102.0 F)	7.8 C (46.0 F)	n/a	n/a
Sep	34.4 C (93.9 F)	0.0 C (32.0 F)	n/a	n/a
Oct	30.6 C (87.1 F)	-2.2 C (28.0 F)	n/a	n/a
Nov	27.8 C (82.0 F)	-11.7 C (10.9 F)	n/a	n/a
Dec	16.7 C (62.1 F)	-11.1 C (12.0 F)	n/a	n/a

Which Years Hold Standing Records

1,352 standing records

1,352 records at Connellsville still stand. 1935 holds the most, with 787.

Wettest Day of Each Month

Aug: 144.8 mm (5.7 in)

The wettest day on record for each calendar month at Connellsville. The most was 144.8 mm (5.7 in) on 6 August 1956.

Record daily precipitation for each month at Connellsville
Month	Record daily precipitation (mm)	Date
Jan	46.5 mm (1.8 in)	27 January 1952
Feb	27.9 mm (1.1 in)	4 February 1961
Mar	62.7 mm (2.5 in)	17 March 1936
Apr	53.3 mm (2.1 in)	29 April 1951
May	64.8 mm (2.6 in)	7 May 1953
Jun	105.9 mm (4.2 in)	5 June 1941
Jul	76.7 mm (3.0 in)	24 July 1955
Aug	144.8 mm (5.7 in)	6 August 1956
Sep	85.1 mm (3.4 in)	7 September 1956
Oct	130.0 mm (5.1 in)	16 October 1954
Nov	50.8 mm (2.0 in)	25 November 1950
Dec	51.6 mm (2.0 in)	9 December 1972

Period of Record Coverage

1928 to 1941

6 years of record at Connellsville, 1928 to 1941. 6 years have data for under 90 percent of days and are left out of rankings: 1928, 1929, 1935, 1938, 1939, 1941.

Latest Records

Latest records at Connellsville
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 February 1976	Connellsville, US	daily rain	17.0 mm (0.7 in)	1.3 mm (0.05 in)	20 years	12 of 100 (Routine)
8 January 1976	Connellsville, US	daily rain	11.9 mm (0.5 in)	0.2 mm (0.01 in)	22 years	10 of 100 (Routine)
16 December 1975	Connellsville, US	daily rain	17.8 mm (0.7 in)	2.8 mm (0.11 in)	26 years	15 of 100 (Routine)
13 November 1975	Connellsville, US	daily rain	27.7 mm (1.1 in)	5.9 mm (0.23 in)	40 years	23 of 100 (Routine)
9 October 1975	Connellsville, US	daily rain	9.4 mm (0.37 in)	0.3 mm (0.01 in)	16 years	8 of 100 (Routine)
23 September 1975	Connellsville, US	daily rain (Tie)	16.5 mm (0.6 in)	tie	1 year	1 of 100 (Routine)
12 September 1975	Connellsville, US	daily rain	31.8 mm (1.3 in)	2.6 mm (0.10 in)	21 years	12 of 100 (Routine)
27 June 1975	Connellsville, US	daily rain	23.4 mm (0.9 in)	4.1 mm (0.16 in)	36 years	18 of 100 (Routine)
27 May 1975	Connellsville, US	daily rain	21.6 mm (0.9 in)	2.5 mm (0.10 in)	18 years	11 of 100 (Routine)
16 May 1975	Connellsville, US	daily rain	37.3 mm (1.5 in)	6.6 mm (0.26 in)	32 years	19 of 100 (Routine)
5 May 1975	Connellsville, US	daily rain	21.3 mm (0.8 in)	11.6 mm (0.5 in)	30 years	20 of 100 (Routine)
2 May 1975	Connellsville, US	daily rain	28.7 mm (1.1 in)	10.9 mm (0.4 in)	40 years	27 of 100 (Routine)
3 April 1975	Connellsville, US	daily rain	23.1 mm (0.9 in)	9.4 mm (0.37 in)	18 years	20 of 100 (Routine)
12 November 1974	Connellsville, US	daily rain	7.4 mm (0.29 in)	0.8 mm (0.03 in)	39 years	16 of 100 (Routine)
15 September 1974	Connellsville, US	daily rain	33.0 mm (1.3 in)	7.6 mm (0.30 in)	17 years	15 of 100 (Routine)
30 August 1974	Connellsville, US	daily rain	24.4 mm (1.0 in)	17.0 mm (0.7 in)	37 years	20 of 100 (Routine)
21 August 1974	Connellsville, US	daily rain	22.6 mm (0.9 in)	3.5 mm (0.14 in)	5 years	7 of 100 (Routine)
11 July 1974	Connellsville, US	daily rain	39.9 mm (1.6 in)	5.1 mm (0.20 in)	37 years	19 of 100 (Routine)
1 July 1974	Connellsville, US	daily rain	28.2 mm (1.1 in)	2.0 mm (0.08 in)	12 years	8 of 100 (Routine)
17 June 1974	Connellsville, US	daily rain	41.1 mm (1.6 in)	8.6 mm (0.34 in)	44 years	24 of 100 (Routine)

Extremes by Year

1928 to 1976

Yearly extremes at Connellsville: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1935	28.9 C (84.0 F)	6
Coldest night (TNn)	-21.1 C (-6.0 F)	1929	-11.4 C (11.5 F)	4
Wettest day (Rx1day)	144.8 mm (5.7 in)	1956	52.5 mm (2.1 in)	46
Wettest five days (Rx5day)	181.7 mm (7.2 in)	1972	80.0 mm (3.1 in)	46
Longest dry spell (CDD)	27 days	1934	15 days	46

Hottest day (TXx)

The hottest day of the year at Connellsville, 1928 to 1976. The record is 40.0 C (104.0 F) in 1935, marked on the chart; the median year is 28.9 C (84.0 F).

Hottest day (TXx) at Connellsville by year
Year	Hottest day (TXx)
1928	30.0 C (86.0 F)
1929	30.0 C (86.0 F)
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	40.0 C (104.0 F)
1936	n/a
1937	n/a
1938	10.0 C (50.0 F)
1939	27.8 C (82.0 F)
1940	n/a
1941	24.4 C (75.9 F)
1942	n/a
1943	n/a
1944	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a

Coldest night (TNn)

The coldest night of the year at Connellsville, 1928 to 1976. The record is -21.1 C (-6.0 F) in 1929, marked on the chart; the median year is -11.4 C (11.5 F).

Coldest night (TNn) at Connellsville by year
Year	Coldest night (TNn)
1928	-11.1 C (12.0 F)
1929	-21.1 C (-6.0 F)
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	-10.6 C (12.9 F)
1936	n/a
1937	n/a
1938	-11.7 C (10.9 F)
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a

Wettest day (Rx1day)

The wettest day of the year at Connellsville, 1928 to 1976. The record is 144.8 mm (5.7 in) in 1956, marked on the chart; the median year is 52.5 mm (2.1 in).

Wettest day (Rx1day) at Connellsville by year
Year	Wettest day (Rx1day)
1928	18.5 mm (0.7 in)
1929	64.3 mm (2.5 in)
1930	71.1 mm (2.8 in)
1931	56.9 mm (2.2 in)
1932	38.9 mm (1.5 in)
1933	52.8 mm (2.1 in)
1934	83.6 mm (3.3 in)
1935	43.2 mm (1.7 in)
1936	62.7 mm (2.5 in)
1937	61.2 mm (2.4 in)
1938	54.6 mm (2.1 in)
1939	38.9 mm (1.5 in)
1940	49.3 mm (1.9 in)
1941	105.9 mm (4.2 in)
1942	52.8 mm (2.1 in)
1943	34.0 mm (1.3 in)
1944	63.2 mm (2.5 in)
1948	51.1 mm (2.0 in)
1949	66.0 mm (2.6 in)
1950	50.8 mm (2.0 in)
1951	53.3 mm (2.1 in)
1952	46.5 mm (1.8 in)
1953	64.8 mm (2.6 in)
1954	130.0 mm (5.1 in)
1955	76.7 mm (3.0 in)
1956	144.8 mm (5.7 in)
1957	36.6 mm (1.4 in)
1958	51.8 mm (2.0 in)
1959	49.0 mm (1.9 in)
1960	32.3 mm (1.3 in)
1961	42.2 mm (1.7 in)
1962	44.2 mm (1.7 in)
1963	69.6 mm (2.7 in)
1964	50.0 mm (2.0 in)
1965	45.7 mm (1.8 in)
1966	63.5 mm (2.5 in)
1967	68.8 mm (2.7 in)
1968	40.6 mm (1.6 in)
1969	69.9 mm (2.8 in)
1970	48.3 mm (1.9 in)
1971	47.0 mm (1.9 in)
1972	105.7 mm (4.2 in)
1973	52.1 mm (2.1 in)
1974	61.7 mm (2.4 in)
1975	39.1 mm (1.5 in)
1976	24.9 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Connellsville, 1928 to 1976. The record is 181.7 mm (7.2 in) in 1972, marked on the chart; the median year is 80.0 mm (3.1 in).

Wettest five days (Rx5day) at Connellsville by year
Year	Wettest five days (Rx5day)
1928	21.8 mm (0.9 in)
1929	110.5 mm (4.4 in)
1930	81.6 mm (3.2 in)
1931	81.3 mm (3.2 in)
1932	74.7 mm (2.9 in)
1933	89.2 mm (3.5 in)
1934	101.9 mm (4.0 in)
1935	82.1 mm (3.2 in)
1936	133.8 mm (5.3 in)
1937	103.4 mm (4.1 in)
1938	76.7 mm (3.0 in)
1939	74.3 mm (2.9 in)
1940	97.4 mm (3.8 in)
1941	173.7 mm (6.8 in)
1942	79.2 mm (3.1 in)
1943	72.4 mm (2.9 in)
1944	84.2 mm (3.3 in)
1948	59.5 mm (2.3 in)
1949	78.2 mm (3.1 in)
1950	67.8 mm (2.7 in)
1951	96.1 mm (3.8 in)
1952	72.7 mm (2.9 in)
1953	91.5 mm (3.6 in)
1954	136.3 mm (5.4 in)
1955	103.2 mm (4.1 in)
1956	175.0 mm (6.9 in)
1957	41.6 mm (1.6 in)
1958	85.8 mm (3.4 in)
1959	77.0 mm (3.0 in)
1960	50.3 mm (2.0 in)
1961	72.4 mm (2.9 in)
1962	74.9 mm (2.9 in)
1963	72.4 mm (2.9 in)
1964	79.0 mm (3.1 in)
1965	78.2 mm (3.1 in)
1966	82.1 mm (3.2 in)
1967	123.9 mm (4.9 in)
1968	70.8 mm (2.8 in)
1969	75.0 mm (3.0 in)
1970	92.5 mm (3.6 in)
1971	78.3 mm (3.1 in)
1972	181.7 mm (7.2 in)
1973	127.4 mm (5.0 in)
1974	80.7 mm (3.2 in)
1975	66.6 mm (2.6 in)
1976	48.8 mm (1.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Connellsville, 1928 to 1976. The record is 27 days in 1934, marked on the chart; the median year is 15 days.

Longest dry spell (CDD) at Connellsville by year
Year	Longest dry spell (CDD)
1928	9 days
1929	12 days
1930	21 days
1931	12 days
1932	17 days
1933	11 days
1934	27 days
1935	12 days
1936	20 days
1937	13 days
1938	13 days
1939	14 days
1940	13 days
1941	18 days
1942	16 days
1943	27 days
1944	13 days
1948	12 days
1949	10 days
1950	12 days
1951	14 days
1952	12 days
1953	25 days
1954	15 days
1955	21 days
1956	25 days
1957	15 days
1958	16 days
1959	27 days
1960	14 days
1961	13 days
1962	18 days
1963	27 days
1964	18 days
1965	14 days
1966	12 days
1967	23 days
1968	15 days
1969	13 days
1970	17 days
1971	16 days
1972	11 days
1973	15 days
1974	15 days
1975	11 days
1976	10 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.

Rainfall Return Levels

36 years, 1931 to 1974

A day with at least 54.3 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 167.8 mm (6.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Connellsville: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	54.3 mm (2.1 in)
5 years	73.8 mm (2.9 in)
10 years	90.2 mm (3.6 in)
25 years	116.0 mm (4.6 in)
50 years	139.6 mm (5.5 in)	Longer than the 36 years of record
100 years	167.8 mm (6.6 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 1931 to 1974.

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: 144.8 mm (5.7 in) in 1956; 130.0 mm (5.1 in) in 1954; 105.9 mm (4.2 in) in 1941.

Download the Data

Data for Connellsville standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Connellsville 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).