Record envelope, standing records and threshold days for Millville 2 SW (USC00365817), Pennsylvania, United States, with 43 years of record.
Key Facts for Millville 2 SW
Millville 2 SW (USC00365817) is a weather station in Pennsylvania, United States at 41.10 latitude and -76.57 longitude, 262 m (860 ft) above sea level.
The station reports from 1950 to 1992, 43 years of record.
1,464 records set at Millville 2 SW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Millville 2 SW tied a daily record low maximum temperature of 18.9 C (66.0 F) on 30 August 1992.
About the Station
Location: Pennsylvania, United States, 41.10 latitude, -76.57 longitude.
Elevation: 262 m (860 ft).
Period of record: 1950 to 1992, 43 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
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 Millville 2 SW. 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 Millville 2 SW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
20.6 C (69.1 F)
-27.2 C (-17.0 F)
n/a
n/a
Feb
21.7 C (71.1 F)
-26.7 C (-16.1 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-21.7 C (-7.1 F)
n/a
n/a
Apr
32.8 C (91.0 F)
-11.1 C (12.0 F)
n/a
n/a
May
32.8 C (91.0 F)
-3.9 C (25.0 F)
n/a
n/a
Jun
34.4 C (93.9 F)
0.6 C (33.1 F)
n/a
n/a
Jul
39.4 C (102.9 F)
5.0 C (41.0 F)
n/a
n/a
Aug
35.0 C (95.0 F)
2.8 C (37.0 F)
n/a
n/a
Sep
34.4 C (93.9 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-7.8 C (18.0 F)
n/a
n/a
Nov
26.1 C (79.0 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
19.4 C (66.9 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 Millville 2 SW still stand. 1964 holds the most, with 67.
Standing records at Millville 2 SW by the year they were set
Year set
Standing records
1960
44
1961
38
1962
49
1963
64
1964
67
1965
54
1966
53
1967
59
1968
43
1969
28
1970
43
1971
40
1972
44
1973
42
1974
40
1975
47
1976
64
1977
46
1978
25
1979
65
1980
34
1981
29
1982
43
1983
31
1984
33
1985
33
1986
25
1987
30
1988
51
1989
45
1990
61
1991
65
1992
29
All-Time Record Progression
1 new records
1 all-time records were set at Millville 2 SW between 23 January 1987 and 23 January 1987. Each dot is a new record.
When Millville 2 SW set new all-time records
Date
Kind
Detail
1987-01-23
Record daily snowfall
Record daily snowfall 40.6 cm (16.0 in)
Wettest Day of Each Month
Jun: 152.4 mm (6.0 in)
The wettest day on record for each calendar month at Millville 2 SW. The most was 152.4 mm (6.0 in) on 22 June 1972.
Record daily precipitation for each month at Millville 2 SW
Month
Record daily precipitation (mm)
Date
Jan
54.6 mm (2.1 in)
9 January 1978
Feb
46.5 mm (1.8 in)
28 February 1958
Mar
65.5 mm (2.6 in)
15 March 1986
Apr
62.7 mm (2.5 in)
16 April 1983
May
62.0 mm (2.4 in)
9 May 1960
Jun
152.4 mm (6.0 in)
22 June 1972
Jul
79.5 mm (3.1 in)
3 July 1987
Aug
73.7 mm (2.9 in)
2 August 1965
Sep
99.1 mm (3.9 in)
26 September 1975
Oct
78.0 mm (3.1 in)
18 October 1975
Nov
82.6 mm (3.3 in)
29 November 1984
Dec
55.4 mm (2.2 in)
14 December 1983
Period of Record Coverage
1960 to 1992
Complete yearUnder 90 percent of days
33 years of record at Millville 2 SW, 1960 to 1992. 2 years have data for under 90 percent of days and are left out of rankings: 1960, 1992.
Cooler than the station meanWarmer than the station mean
One stripe for each of 30 complete years at Millville 2 SW, 1961 to 1991. Blue stripes are years cooler than the station's own mean of 8.7 C (47.7 F); red stripes are warmer. The coolest year was 1963, at 7.8 C (46.0 F), and the warmest was 1991, at 10.0 C (50.1 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Millville 2 SW as warming stripes, 1961 to 1991
Year
Annual mean temperature
Difference from the station mean
1961
8.7 C
-0.03 C
1962
8.0 C
-0.68 C
1963
7.8 C
-0.93 C
1964
8.7 C
+0.01 C
1965
8.3 C
-0.40 C
1966
8.4 C
-0.31 C
1967
8.1 C
-0.60 C
1968
8.5 C
-0.18 C
1969
8.6 C
-0.10 C
1970
8.6 C
-0.16 C
1971
8.8 C
+0.04 C
1972
8.2 C
-0.47 C
1973
9.9 C
+1.16 C
1974
8.7 C
-0.05 C
1975
9.2 C
+0.48 C
1976
8.1 C
-0.64 C
1977
8.7 C
-0.05 C
1978
8.0 C
-0.76 C
1979
8.8 C
+0.11 C
1980
8.6 C
-0.08 C
1981
8.5 C
-0.24 C
1982
8.4 C
-0.27 C
1983
9.3 C
+0.59 C
1984
8.8 C
+0.06 C
1985
9.0 C
+0.29 C
1986
8.9 C
+0.18 C
1987
9.1 C
+0.34 C
1988
8.7 C
-0.01 C
1990
10.0 C
+1.24 C
1991
10.0 C
+1.32 C
The annual mean temperature here has risen by 0.4 C (0.2 to 0.5) per decade over 1961 to 1991. In Fahrenheit: 0.6 F (0.3 to 1.0) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Millville 2 SW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.4 C (0.2 to 0.5) per decade
0.6 F (0.3 to 1.0) per decade
1961 to 1991
30
Rise
Mean daily maximum
0.3 C (0.1 to 0.5) per decade
0.5 F (0.1 to 0.9) per decade
1961 to 1991
30
Rise
Mean daily minimum
0.4 C (0.2 to 0.7) per decade
0.8 F (0.3 to 1.2) per decade
1961 to 1991
30
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
1950 to 1992
Yearly extremes at Millville 2 SW: 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)
1988
33.3 C (91.9 F)
33
Coldest night (TNn)
-27.2 C (-17.0 F)
1968
-22.2 C (-8.0 F)
33
Wettest day (Rx1day)
152.4 mm (6.0 in)
1972
52.8 mm (2.1 in)
43
Wettest five days (Rx5day)
310.4 mm (12.2 in)
1972
78.5 mm (3.1 in)
43
Longest dry spell (CDD)
31 days
1980
17 days
43
Hottest day (TXx)
The hottest day of the year at Millville 2 SW, 1950 to 1992. The record is 39.4 C (102.9 F) in 1988, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Millville 2 SW by year
Year
Hottest day (TXx)
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
31.7 C (89.1 F)
1961
32.8 C (91.0 F)
1962
33.3 C (91.9 F)
1963
33.9 C (93.0 F)
1964
35.0 C (95.0 F)
1965
33.9 C (93.0 F)
1966
37.8 C (100.0 F)
1967
33.3 C (91.9 F)
1968
33.9 C (93.0 F)
1969
33.9 C (93.0 F)
1970
32.2 C (90.0 F)
1971
33.9 C (93.0 F)
1972
33.3 C (91.9 F)
1973
35.0 C (95.0 F)
1974
32.2 C (90.0 F)
1975
35.0 C (95.0 F)
1976
32.8 C (91.0 F)
1977
33.3 C (91.9 F)
1978
32.8 C (91.0 F)
1979
32.8 C (91.0 F)
1980
35.0 C (95.0 F)
1981
32.8 C (91.0 F)
1982
32.2 C (90.0 F)
1983
35.0 C (95.0 F)
1984
32.2 C (90.0 F)
1985
32.2 C (90.0 F)
1986
33.9 C (93.0 F)
1987
33.3 C (91.9 F)
1988
39.4 C (102.9 F)
1989
32.2 C (90.0 F)
1990
35.0 C (95.0 F)
1991
36.1 C (97.0 F)
1992
31.1 C (88.0 F)
Coldest night (TNn)
The coldest night of the year at Millville 2 SW, 1950 to 1992. The record is -27.2 C (-17.0 F) in 1968, marked on the chart; the median year is -22.2 C (-8.0 F).
Coldest night (TNn) at Millville 2 SW by year
Year
Coldest night (TNn)
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
-24.4 C (-11.9 F)
1961
-24.4 C (-11.9 F)
1962
-21.7 C (-7.1 F)
1963
-23.9 C (-11.0 F)
1964
-21.7 C (-7.1 F)
1965
-20.6 C (-5.1 F)
1966
-21.1 C (-6.0 F)
1967
-23.3 C (-9.9 F)
1968
-27.2 C (-17.0 F)
1969
-22.8 C (-9.0 F)
1970
-23.9 C (-11.0 F)
1971
-22.2 C (-8.0 F)
1972
-20.6 C (-5.1 F)
1973
-18.3 C (-0.9 F)
1974
-18.3 C (-0.9 F)
1975
-22.2 C (-8.0 F)
1976
-22.8 C (-9.0 F)
1977
-24.4 C (-11.9 F)
1978
-20.6 C (-5.1 F)
1979
-26.7 C (-16.1 F)
1980
-23.3 C (-9.9 F)
1981
-26.7 C (-16.1 F)
1982
-25.6 C (-14.1 F)
1983
-21.7 C (-7.1 F)
1984
-27.2 C (-17.0 F)
1985
-26.7 C (-16.1 F)
1986
-18.3 C (-0.9 F)
1987
-22.2 C (-8.0 F)
1988
-22.2 C (-8.0 F)
1989
-23.9 C (-11.0 F)
1990
-17.2 C (1.0 F)
1991
-16.7 C (1.9 F)
1992
-17.2 C (1.0 F)
Wettest day (Rx1day)
The wettest day of the year at Millville 2 SW, 1950 to 1992. The record is 152.4 mm (6.0 in) in 1972, marked on the chart; the median year is 52.8 mm (2.1 in).
Wettest day (Rx1day) at Millville 2 SW by year
Year
Wettest day (Rx1day)
1950
65.0 mm (2.6 in)
1951
41.4 mm (1.6 in)
1952
59.7 mm (2.4 in)
1953
37.3 mm (1.5 in)
1954
35.6 mm (1.4 in)
1955
64.5 mm (2.5 in)
1956
32.8 mm (1.3 in)
1957
39.9 mm (1.6 in)
1958
57.9 mm (2.3 in)
1959
63.0 mm (2.5 in)
1960
62.0 mm (2.4 in)
1961
30.5 mm (1.2 in)
1962
56.9 mm (2.2 in)
1963
47.2 mm (1.9 in)
1964
38.1 mm (1.5 in)
1965
73.7 mm (2.9 in)
1966
41.1 mm (1.6 in)
1967
50.8 mm (2.0 in)
1968
69.1 mm (2.7 in)
1969
74.9 mm (2.9 in)
1970
40.6 mm (1.6 in)
1971
44.5 mm (1.8 in)
1972
152.4 mm (6.0 in)
1973
63.8 mm (2.5 in)
1974
62.5 mm (2.5 in)
1975
99.1 mm (3.9 in)
1976
69.9 mm (2.8 in)
1977
43.4 mm (1.7 in)
1978
54.6 mm (2.1 in)
1979
55.9 mm (2.2 in)
1980
41.7 mm (1.6 in)
1981
30.5 mm (1.2 in)
1982
42.2 mm (1.7 in)
1983
95.3 mm (3.8 in)
1984
82.6 mm (3.3 in)
1985
48.3 mm (1.9 in)
1986
65.5 mm (2.6 in)
1987
79.5 mm (3.1 in)
1988
43.7 mm (1.7 in)
1989
50.0 mm (2.0 in)
1990
52.8 mm (2.1 in)
1991
52.8 mm (2.1 in)
1992
44.5 mm (1.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Millville 2 SW, 1950 to 1992. The record is 310.4 mm (12.2 in) in 1972, marked on the chart; the median year is 78.5 mm (3.1 in).
Wettest five days (Rx5day) at Millville 2 SW by year
Year
Wettest five days (Rx5day)
1950
75.7 mm (3.0 in)
1951
67.4 mm (2.7 in)
1952
107.7 mm (4.2 in)
1953
67.6 mm (2.7 in)
1954
51.0 mm (2.0 in)
1955
141.6 mm (5.6 in)
1956
73.5 mm (2.9 in)
1957
85.9 mm (3.4 in)
1958
121.7 mm (4.8 in)
1959
67.6 mm (2.7 in)
1960
95.3 mm (3.8 in)
1961
51.0 mm (2.0 in)
1962
62.5 mm (2.5 in)
1963
53.1 mm (2.1 in)
1964
81.3 mm (3.2 in)
1965
83.4 mm (3.3 in)
1966
54.6 mm (2.1 in)
1967
76.0 mm (3.0 in)
1968
71.6 mm (2.8 in)
1969
99.0 mm (3.9 in)
1970
74.5 mm (2.9 in)
1971
75.4 mm (3.0 in)
1972
310.4 mm (12.2 in)
1973
99.9 mm (3.9 in)
1974
83.3 mm (3.3 in)
1975
247.5 mm (9.7 in)
1976
135.6 mm (5.3 in)
1977
77.4 mm (3.0 in)
1978
78.5 mm (3.1 in)
1979
86.1 mm (3.4 in)
1980
51.0 mm (2.0 in)
1981
60.0 mm (2.4 in)
1982
95.3 mm (3.8 in)
1983
104.4 mm (4.1 in)
1984
89.2 mm (3.5 in)
1985
70.2 mm (2.8 in)
1986
87.6 mm (3.4 in)
1987
92.2 mm (3.6 in)
1988
82.8 mm (3.3 in)
1989
117.9 mm (4.6 in)
1990
78.3 mm (3.1 in)
1991
69.8 mm (2.7 in)
1992
59.8 mm (2.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Millville 2 SW, 1950 to 1992. The record is 31 days in 1980, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Millville 2 SW by year
Year
Longest dry spell (CDD)
1950
9 days
1951
12 days
1952
26 days
1953
20 days
1954
14 days
1955
12 days
1956
16 days
1957
13 days
1958
22 days
1959
17 days
1960
12 days
1961
17 days
1962
17 days
1963
28 days
1964
27 days
1965
20 days
1966
15 days
1967
19 days
1968
25 days
1969
21 days
1970
14 days
1971
14 days
1972
16 days
1973
16 days
1974
18 days
1975
14 days
1976
22 days
1977
14 days
1978
13 days
1979
15 days
1980
31 days
1981
14 days
1982
15 days
1983
22 days
1984
16 days
1985
19 days
1986
23 days
1987
23 days
1988
23 days
1989
16 days
1990
13 days
1991
23 days
1992
18 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
30 years with a frost
Across 30 years with a frost, the median last spring frost at Millville 2 SW falls on 8 May and the median first autumn frost on 9 October, which leaves a median of 157 days between them.
Fitted over all years, the growing season changes by +6.2 days per decade at this station.
Frost dates and growing season at Millville 2 SW
Measure
Median, all years
Earliest period
Recent period (1961 to 1991)
Recent against earliest
Fitted trend
Last spring frost
8 May
n/a
8 May
n/a
-3.5 days per decade
First autumn frost
9 October
n/a
9 October
n/a
+2.6 days per decade
Growing days
157 days
n/a
157 days
n/a
+6.2 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
41 years, 1951 to 1991
A day with at least 52.0 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 139.7 mm (5.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Millville 2 SW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
52.0 mm (2.0 in)
5 years
70.2 mm (2.8 in)
10 years
84.1 mm (3.3 in)
25 years
104.2 mm (4.1 in)
50 years
121.0 mm (4.8 in)
Longer than the 41 years of record
100 years
139.7 mm (5.5 in)
Longer than the 41 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, 41 years of values from 1951 to 1991.
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: 152.4 mm (6.0 in) in 1972; 99.1 mm (3.9 in) in 1975; 95.3 mm (3.8 in) in 1983.
Download the Data
Data for Millville 2 SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Millville 2 SW 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.