Record envelope, standing records and threshold days for Bloserville 1 N (USC00360763), Pennsylvania, United States, with 96 years of record.
Key Facts for Bloserville 1 N
Bloserville 1 N (USC00360763) is a weather station in Pennsylvania, United States at 40.26 latitude and -77.36 longitude, 213 m (700 ft) above sea level.
The station reports from 1912 to 2007, 96 years of record.
1,464 records set at Bloserville 1 N still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Bloserville 1 N set a daily record low maximum temperature of 5.0 C (41.0 F) on 17 April 2007.
About the Station
Location: Pennsylvania, United States, 40.26 latitude, -77.36 longitude.
Elevation: 213 m (700 ft).
Period of record: 1912 to 2007, 96 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 Bloserville 1 N. 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 Bloserville 1 N, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
21.7 C (71.1 F)
-28.3 C (-18.9 F)
n/a
n/a
Feb
25.0 C (77.0 F)
-21.1 C (-6.0 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-16.7 C (1.9 F)
n/a
n/a
Apr
33.9 C (93.0 F)
-10.6 C (12.9 F)
n/a
n/a
May
35.0 C (95.0 F)
-3.3 C (26.1 F)
n/a
n/a
Jun
36.7 C (98.1 F)
2.8 C (37.0 F)
n/a
n/a
Jul
38.9 C (102.0 F)
6.7 C (44.1 F)
n/a
n/a
Aug
37.8 C (100.0 F)
5.6 C (42.1 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-0.6 C (30.9 F)
n/a
n/a
Oct
31.7 C (89.1 F)
-6.7 C (19.9 F)
n/a
n/a
Nov
27.8 C (82.0 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
25.0 C (77.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Bloserville 1 N still stand. 1991 holds the most, with 53.
Standing records at Bloserville 1 N by the year they were set
Year set
Standing records
1914
46
1915
34
1916
35
1917
7
1959
19
1960
27
1961
26
1962
22
1963
40
1964
35
1965
30
1966
44
1967
34
1968
37
1969
18
1970
33
1971
28
1972
28
1973
27
1974
23
1975
29
1976
44
1977
29
1978
22
1979
40
1980
16
1981
12
1982
25
1983
28
1984
40
1985
29
1986
34
1987
16
1988
48
1989
33
1990
31
1991
53
1992
19
1993
31
1994
25
1995
22
1996
26
1997
14
1998
35
1999
14
2000
15
2001
23
2002
34
2003
16
2004
24
2005
17
2006
17
2007
10
All-Time Record Progression
3 new records
3 all-time records were set at Bloserville 1 N between 19 February 1964 and 20 January 1994. Each dot is a new record.
When Bloserville 1 N set new all-time records
Date
Kind
Detail
1964-02-19
Record daily snowfall
Record daily snowfall 61.0 cm (24.0 in)
1994-01-19
Record low minimum temperature
Record low minimum temperature -28.3 C (-18.9 F)
1994-01-20
Record low maximum temperature
Record low maximum temperature -17.2 C (1.0 F)
Wettest Day of Each Month
Aug: 195.6 mm (7.7 in)
The wettest day on record for each calendar month at Bloserville 1 N. The most was 195.6 mm (7.7 in) on 23 August 1933.
Record daily precipitation for each month at Bloserville 1 N
Month
Record daily precipitation (mm)
Date
Jan
124.5 mm (4.9 in)
13 January 1994
Feb
73.7 mm (2.9 in)
15 February 1984
Mar
94.5 mm (3.7 in)
11 March 1952
Apr
72.4 mm (2.9 in)
26 April 1937
May
78.7 mm (3.1 in)
6 May 1921
Jun
116.3 mm (4.6 in)
23 June 1972
Jul
152.9 mm (6.0 in)
23 July 1927
Aug
195.6 mm (7.7 in)
23 August 1933
Sep
171.5 mm (6.8 in)
11 September 1997
Oct
105.4 mm (4.1 in)
8 October 2005
Nov
71.1 mm (2.8 in)
13 November 1937
Dec
66.0 mm (2.6 in)
1 December 1934
Period of Record Coverage
1914 to 2007
Complete yearUnder 90 percent of days
53 years of record at Bloserville 1 N, 1914 to 2007. 7 years have data for under 90 percent of days and are left out of rankings: 1914, 1917, 1959, 1981, 1990, 1996, 2007.
Cooler than the station meanWarmer than the station mean
One stripe for each of 43 complete years at Bloserville 1 N, 1915 to 2006. Blue stripes are years cooler than the station's own mean of 10.7 C (51.2 F); red stripes are warmer. The coolest year was 1978, at 9.1 C (48.4 F), and the warmest was 1998, at 12.3 C (54.2 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Bloserville 1 N as warming stripes, 1915 to 2006
Year
Annual mean temperature
Difference from the station mean
1915
10.9 C
+0.28 C
1916
10.7 C
+0.04 C
1960
10.4 C
-0.24 C
1961
10.8 C
+0.16 C
1962
10.2 C
-0.41 C
1963
10.1 C
-0.52 C
1964
10.7 C
+0.09 C
1965
10.5 C
-0.15 C
1966
10.6 C
-0.01 C
1967
10.1 C
-0.59 C
1968
10.6 C
-0.10 C
1969
10.7 C
+0.09 C
1970
10.9 C
+0.26 C
1971
11.0 C
+0.35 C
1972
10.3 C
-0.38 C
1973
11.4 C
+0.76 C
1974
10.7 C
+0.08 C
1975
10.9 C
+0.26 C
1976
10.0 C
-0.67 C
1977
10.8 C
+0.18 C
1978
9.1 C
-1.54 C
1979
10.3 C
-0.40 C
1983
10.4 C
-0.24 C
1984
9.8 C
-0.84 C
1985
11.7 C
+1.05 C
1986
11.0 C
+0.34 C
1987
11.2 C
+0.53 C
1988
10.3 C
-0.37 C
1989
10.2 C
-0.50 C
1991
12.2 C
+1.58 C
1992
10.0 C
-0.65 C
1993
10.5 C
-0.20 C
1994
10.5 C
-0.13 C
1995
10.4 C
-0.24 C
1997
10.3 C
-0.40 C
1998
12.3 C
+1.67 C
1999
10.8 C
+0.10 C
2000
9.5 C
-1.12 C
2001
11.4 C
+0.73 C
2002
11.6 C
+0.94 C
2003
10.0 C
-0.64 C
2004
10.7 C
+0.03 C
2006
11.5 C
+0.83 C
The fitted trend in annual mean temperature here over 1915 to 2006 is 0.03 C (-0.07 to 0.13) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.2) per decade. The slope is a straight line fitted to 43 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Bloserville 1 N
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.03 C (-0.07 to 0.13) per decade
0.1 F (-0.1 to 0.2) per decade
1915 to 2006
43
Not clearly different from zero
Mean daily maximum
-0.08 C (-0.20 to 0.03) per decade
-0.2 F (-0.4 to 0.1) per decade
1915 to 2006
43
Not clearly different from zero
Mean daily minimum
0.14 C (0.02 to 0.27) per decade
0.26 F (0.03 to 0.48) per decade
1915 to 2006
43
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
1912 to 2007
Yearly extremes at Bloserville 1 N: 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)
1966
35.0 C (95.0 F)
53
Coldest night (TNn)
-28.3 C (-18.9 F)
1994
-17.2 C (1.0 F)
53
Wettest day (Rx1day)
195.6 mm (7.7 in)
1933
61.7 mm (2.4 in)
96
Wettest five days (Rx5day)
250.9 mm (9.9 in)
1972
93.1 mm (3.7 in)
96
Longest dry spell (CDD)
38 days
2001
18 days
96
Hottest day (TXx)
The hottest day of the year at Bloserville 1 N, 1912 to 2007. The record is 38.9 C (102.0 F) in 1966, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Bloserville 1 N by year
Year
Hottest day (TXx)
1912
n/a
1913
n/a
1914
36.7 C (98.1 F)
1915
35.6 C (96.1 F)
1916
36.1 C (97.0 F)
1917
31.7 C (89.1 F)
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
n/a
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
n/a
1930
n/a
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
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
34.4 C (93.9 F)
1960
33.3 C (91.9 F)
1961
33.9 C (93.0 F)
1962
37.2 C (99.0 F)
1963
35.0 C (95.0 F)
1964
35.6 C (96.1 F)
1965
35.0 C (95.0 F)
1966
38.9 C (102.0 F)
1967
35.0 C (95.0 F)
1968
35.0 C (95.0 F)
1969
36.1 C (97.0 F)
1970
35.0 C (95.0 F)
1971
33.9 C (93.0 F)
1972
35.0 C (95.0 F)
1973
36.1 C (97.0 F)
1974
33.9 C (93.0 F)
1975
36.7 C (98.1 F)
1976
33.9 C (93.0 F)
1977
35.0 C (95.0 F)
1978
33.3 C (91.9 F)
1979
33.3 C (91.9 F)
1980
38.3 C (100.9 F)
1981
35.0 C (95.0 F)
1982
34.4 C (93.9 F)
1983
37.8 C (100.0 F)
1984
33.9 C (93.0 F)
1985
35.0 C (95.0 F)
1986
36.7 C (98.1 F)
1987
35.6 C (96.1 F)
1988
37.8 C (100.0 F)
1989
32.8 C (91.0 F)
1990
35.6 C (96.1 F)
1991
37.8 C (100.0 F)
1992
32.8 C (91.0 F)
1993
35.6 C (96.1 F)
1994
35.6 C (96.1 F)
1995
35.0 C (95.0 F)
1996
35.0 C (95.0 F)
1997
35.0 C (95.0 F)
1998
35.0 C (95.0 F)
1999
36.7 C (98.1 F)
2000
30.6 C (87.1 F)
2001
36.7 C (98.1 F)
2002
36.7 C (98.1 F)
2003
32.2 C (90.0 F)
2004
31.7 C (89.1 F)
2005
34.4 C (93.9 F)
2006
34.4 C (93.9 F)
2007
30.0 C (86.0 F)
Coldest night (TNn)
The coldest night of the year at Bloserville 1 N, 1912 to 2007. The record is -28.3 C (-18.9 F) in 1994, marked on the chart; the median year is -17.2 C (1.0 F).
Coldest night (TNn) at Bloserville 1 N by year
Year
Coldest night (TNn)
1912
n/a
1913
n/a
1914
-23.3 C (-9.9 F)
1915
-14.4 C (6.1 F)
1916
-19.4 C (-2.9 F)
1917
-19.4 C (-2.9 F)
1918
n/a
1919
n/a
1920
n/a
1921
n/a
1922
n/a
1923
n/a
1924
n/a
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
n/a
1930
n/a
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
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
-13.3 C (8.1 F)
1960
-19.4 C (-2.9 F)
1961
-20.6 C (-5.1 F)
1962
-18.9 C (-2.0 F)
1963
-21.1 C (-6.0 F)
1964
-15.0 C (5.0 F)
1965
-17.2 C (1.0 F)
1966
-17.8 C (0.0 F)
1967
-16.1 C (3.0 F)
1968
-18.9 C (-2.0 F)
1969
-15.0 C (5.0 F)
1970
-18.9 C (-2.0 F)
1971
-17.8 C (0.0 F)
1972
-18.3 C (-0.9 F)
1973
-17.2 C (1.0 F)
1974
-14.4 C (6.1 F)
1975
-16.7 C (1.9 F)
1976
-18.3 C (-0.9 F)
1977
-21.1 C (-6.0 F)
1978
-17.8 C (0.0 F)
1979
-21.1 C (-6.0 F)
1980
-18.3 C (-0.9 F)
1981
-16.1 C (3.0 F)
1982
-23.3 C (-9.9 F)
1983
-17.8 C (0.0 F)
1984
-25.0 C (-13.0 F)
1985
-23.9 C (-11.0 F)
1986
-16.1 C (3.0 F)
1987
-17.2 C (1.0 F)
1988
-16.7 C (1.9 F)
1989
-17.2 C (1.0 F)
1990
-15.0 C (5.0 F)
1991
-12.2 C (10.0 F)
1992
-15.0 C (5.0 F)
1993
-17.8 C (0.0 F)
1994
-28.3 C (-18.9 F)
1995
-16.1 C (3.0 F)
1996
-20.0 C (-4.0 F)
1997
-20.6 C (-5.1 F)
1998
-13.3 C (8.1 F)
1999
-15.0 C (5.0 F)
2000
-15.6 C (3.9 F)
2001
-14.4 C (6.1 F)
2002
-12.2 C (10.0 F)
2003
-16.7 C (1.9 F)
2004
-22.2 C (-8.0 F)
2005
-15.6 C (3.9 F)
2006
-13.9 C (7.0 F)
2007
-16.1 C (3.0 F)
Wettest day (Rx1day)
The wettest day of the year at Bloserville 1 N, 1912 to 2007. The record is 195.6 mm (7.7 in) in 1933, marked on the chart; the median year is 61.7 mm (2.4 in).
Wettest day (Rx1day) at Bloserville 1 N by year
Year
Wettest day (Rx1day)
1912
49.8 mm (2.0 in)
1913
62.7 mm (2.5 in)
1914
61.5 mm (2.4 in)
1915
103.6 mm (4.1 in)
1916
95.8 mm (3.8 in)
1917
89.4 mm (3.5 in)
1918
65.0 mm (2.6 in)
1919
79.0 mm (3.1 in)
1920
58.4 mm (2.3 in)
1921
82.6 mm (3.3 in)
1922
57.2 mm (2.3 in)
1923
76.7 mm (3.0 in)
1924
100.3 mm (3.9 in)
1925
45.7 mm (1.8 in)
1926
62.2 mm (2.4 in)
1927
152.9 mm (6.0 in)
1928
68.6 mm (2.7 in)
1929
73.7 mm (2.9 in)
1930
36.8 mm (1.4 in)
1931
48.3 mm (1.9 in)
1932
53.3 mm (2.1 in)
1933
195.6 mm (7.7 in)
1934
96.8 mm (3.8 in)
1935
85.1 mm (3.4 in)
1936
57.2 mm (2.3 in)
1937
72.4 mm (2.9 in)
1938
45.7 mm (1.8 in)
1939
50.8 mm (2.0 in)
1940
61.0 mm (2.4 in)
1941
50.8 mm (2.0 in)
1942
73.9 mm (2.9 in)
1943
88.4 mm (3.5 in)
1944
44.5 mm (1.8 in)
1945
61.0 mm (2.4 in)
1946
64.3 mm (2.5 in)
1947
61.7 mm (2.4 in)
1948
53.3 mm (2.1 in)
1949
35.1 mm (1.4 in)
1950
57.2 mm (2.3 in)
1951
72.4 mm (2.9 in)
1952
125.7 mm (4.9 in)
1953
47.0 mm (1.9 in)
1954
50.3 mm (2.0 in)
1955
174.0 mm (6.9 in)
1956
62.2 mm (2.4 in)
1957
43.7 mm (1.7 in)
1958
41.1 mm (1.6 in)
1959
60.2 mm (2.4 in)
1960
57.4 mm (2.3 in)
1961
58.4 mm (2.3 in)
1962
83.3 mm (3.3 in)
1963
72.9 mm (2.9 in)
1964
50.8 mm (2.0 in)
1965
47.8 mm (1.9 in)
1966
63.0 mm (2.5 in)
1967
38.1 mm (1.5 in)
1968
74.2 mm (2.9 in)
1969
54.6 mm (2.1 in)
1970
109.2 mm (4.3 in)
1971
62.5 mm (2.5 in)
1972
116.3 mm (4.6 in)
1973
54.1 mm (2.1 in)
1974
38.4 mm (1.5 in)
1975
111.3 mm (4.4 in)
1976
97.8 mm (3.9 in)
1977
52.1 mm (2.1 in)
1978
49.5 mm (1.9 in)
1979
81.8 mm (3.2 in)
1980
50.3 mm (2.0 in)
1981
48.0 mm (1.9 in)
1982
39.4 mm (1.6 in)
1983
64.5 mm (2.5 in)
1984
73.7 mm (2.9 in)
1985
61.0 mm (2.4 in)
1986
37.3 mm (1.5 in)
1987
46.7 mm (1.8 in)
1988
68.6 mm (2.7 in)
1989
61.7 mm (2.4 in)
1990
70.6 mm (2.8 in)
1991
37.1 mm (1.5 in)
1992
50.8 mm (2.0 in)
1993
74.9 mm (2.9 in)
1994
124.5 mm (4.9 in)
1995
58.9 mm (2.3 in)
1996
124.5 mm (4.9 in)
1997
171.5 mm (6.8 in)
1998
59.9 mm (2.4 in)
1999
67.6 mm (2.7 in)
2000
60.5 mm (2.4 in)
2001
31.0 mm (1.2 in)
2002
66.0 mm (2.6 in)
2003
55.9 mm (2.2 in)
2004
112.3 mm (4.4 in)
2005
105.4 mm (4.1 in)
2006
92.2 mm (3.6 in)
2007
37.3 mm (1.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Bloserville 1 N, 1912 to 2007. The record is 250.9 mm (9.9 in) in 1972, marked on the chart; the median year is 93.1 mm (3.7 in).
Wettest five days (Rx5day) at Bloserville 1 N by year
Year
Wettest five days (Rx5day)
1912
52.4 mm (2.1 in)
1913
85.7 mm (3.4 in)
1914
89.4 mm (3.5 in)
1915
126.5 mm (5.0 in)
1916
132.4 mm (5.2 in)
1917
166.4 mm (6.6 in)
1918
145.2 mm (5.7 in)
1919
100.3 mm (3.9 in)
1920
67.4 mm (2.7 in)
1921
100.4 mm (4.0 in)
1922
127.1 mm (5.0 in)
1923
92.2 mm (3.6 in)
1924
153.7 mm (6.1 in)
1925
55.9 mm (2.2 in)
1926
93.4 mm (3.7 in)
1927
166.9 mm (6.6 in)
1928
119.6 mm (4.7 in)
1929
101.6 mm (4.0 in)
1930
53.3 mm (2.1 in)
1931
91.4 mm (3.6 in)
1932
109.2 mm (4.3 in)
1933
202.0 mm (8.0 in)
1934
147.3 mm (5.8 in)
1935
113.0 mm (4.4 in)
1936
85.6 mm (3.4 in)
1937
118.2 mm (4.7 in)
1938
64.7 mm (2.5 in)
1939
82.3 mm (3.2 in)
1940
98.1 mm (3.9 in)
1941
86.9 mm (3.4 in)
1942
112.5 mm (4.4 in)
1943
105.1 mm (4.1 in)
1944
76.0 mm (3.0 in)
1945
115.9 mm (4.6 in)
1946
127.5 mm (5.0 in)
1947
95.3 mm (3.8 in)
1948
75.9 mm (3.0 in)
1949
66.6 mm (2.6 in)
1950
96.8 mm (3.8 in)
1951
144.6 mm (5.7 in)
1952
148.8 mm (5.9 in)
1953
64.7 mm (2.5 in)
1954
68.1 mm (2.7 in)
1955
202.4 mm (8.0 in)
1956
83.0 mm (3.3 in)
1957
63.7 mm (2.5 in)
1958
82.0 mm (3.2 in)
1959
123.7 mm (4.9 in)
1960
81.1 mm (3.2 in)
1961
76.2 mm (3.0 in)
1962
98.5 mm (3.9 in)
1963
77.2 mm (3.0 in)
1964
74.2 mm (2.9 in)
1965
77.8 mm (3.1 in)
1966
104.1 mm (4.1 in)
1967
77.4 mm (3.0 in)
1968
81.1 mm (3.2 in)
1969
92.8 mm (3.7 in)
1970
115.6 mm (4.6 in)
1971
70.6 mm (2.8 in)
1972
250.9 mm (9.9 in)
1973
67.1 mm (2.6 in)
1974
64.3 mm (2.5 in)
1975
210.4 mm (8.3 in)
1976
126.2 mm (5.0 in)
1977
74.9 mm (2.9 in)
1978
103.6 mm (4.1 in)
1979
107.2 mm (4.2 in)
1980
58.9 mm (2.3 in)
1981
100.8 mm (4.0 in)
1982
62.0 mm (2.4 in)
1983
69.6 mm (2.7 in)
1984
105.3 mm (4.1 in)
1985
64.8 mm (2.6 in)
1986
80.8 mm (3.2 in)
1987
93.5 mm (3.7 in)
1988
80.3 mm (3.2 in)
1989
117.3 mm (4.6 in)
1990
147.5 mm (5.8 in)
1991
65.0 mm (2.6 in)
1992
77.5 mm (3.1 in)
1993
81.5 mm (3.2 in)
1994
130.4 mm (5.1 in)
1995
82.0 mm (3.2 in)
1996
166.9 mm (6.6 in)
1997
171.5 mm (6.8 in)
1998
88.9 mm (3.5 in)
1999
85.6 mm (3.4 in)
2000
78.2 mm (3.1 in)
2001
49.8 mm (2.0 in)
2002
108.6 mm (4.3 in)
2003
87.6 mm (3.4 in)
2004
116.1 mm (4.6 in)
2005
112.3 mm (4.4 in)
2006
172.2 mm (6.8 in)
2007
63.8 mm (2.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Bloserville 1 N, 1912 to 2007. The record is 38 days in 2001, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Bloserville 1 N by year
Year
Longest dry spell (CDD)
1912
11 days
1913
15 days
1914
23 days
1915
18 days
1916
17 days
1917
21 days
1918
16 days
1919
20 days
1920
26 days
1921
18 days
1922
25 days
1923
24 days
1924
20 days
1925
23 days
1926
21 days
1927
15 days
1928
13 days
1929
18 days
1930
23 days
1931
18 days
1932
15 days
1933
14 days
1934
24 days
1935
13 days
1936
18 days
1937
17 days
1938
15 days
1939
23 days
1940
18 days
1941
22 days
1942
20 days
1943
33 days
1944
17 days
1945
16 days
1946
14 days
1947
26 days
1948
16 days
1949
21 days
1950
15 days
1951
20 days
1952
28 days
1953
18 days
1954
12 days
1955
19 days
1956
14 days
1957
14 days
1958
22 days
1959
14 days
1960
18 days
1961
15 days
1962
20 days
1963
27 days
1964
26 days
1965
14 days
1966
12 days
1967
24 days
1968
29 days
1969
23 days
1970
15 days
1971
20 days
1972
14 days
1973
25 days
1974
14 days
1975
17 days
1976
24 days
1977
15 days
1978
16 days
1979
13 days
1980
14 days
1981
15 days
1982
13 days
1983
21 days
1984
10 days
1985
13 days
1986
21 days
1987
24 days
1988
21 days
1989
15 days
1990
18 days
1991
16 days
1992
16 days
1993
11 days
1994
15 days
1995
32 days
1996
10 days
1997
17 days
1998
31 days
1999
20 days
2000
19 days
2001
38 days
2002
15 days
2003
11 days
2004
17 days
2005
26 days
2006
22 days
2007
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
43 years with a frost
Across 43 years with a frost, the median last spring frost at Bloserville 1 N falls on 17 April and the median first autumn frost on 20 October, which leaves a median of 181 days between them.
Fitted over all years, the growing season changes by +3.2 days per decade at this station.
Frost dates and growing season at Bloserville 1 N
Measure
Median, all years
Earliest period
Recent period (1971 to 2006)
Recent against earliest
Fitted trend
Last spring frost
17 April
n/a
18 April
n/a
-1.5 days per decade
First autumn frost
20 October
n/a
20 October
n/a
+1.7 days per decade
Growing days
181 days
n/a
185 days
n/a
+3.2 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
90 years, 1913 to 2006
A day with at least 63.0 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 197.2 mm (7.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Bloserville 1 N: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
63.0 mm (2.5 in)
5 years
87.7 mm (3.5 in)
10 years
107.8 mm (4.2 in)
25 years
138.5 mm (5.5 in)
50 years
165.7 mm (6.5 in)
100 years
197.2 mm (7.8 in)
Longer than the 90 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, 90 years of values from 1913 to 2006.
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: 195.6 mm (7.7 in) in 1933; 174.0 mm (6.9 in) in 1955; 171.5 mm (6.8 in) in 1997.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Bloserville 1 N, at 1999. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1999 ran 0.4 C (0.7 F) lower than in the years before (possible change).
Suspected changes in the annual mean temperature at Bloserville 1 N, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1999
-0.4
-0.7
possible
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Bloserville 1 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bloserville 1 N 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.