Record envelope, standing records and threshold days for Newaygo Hardy Dam (USC00205803), Michigan, United States, with 68 years of record.
Key Facts for Newaygo Hardy Dam
Newaygo Hardy Dam (USC00205803) is a weather station in Michigan, United States at 43.48 latitude and -85.63 longitude, 232 m (761 ft) above sea level.
The station reports from 1907 to 1974, 68 years of record.
1,464 records set at Newaygo Hardy Dam still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Newaygo Hardy Dam set a daily record snowfall of 2.0 cm (0.8 in) on 19 October 1974.
About the Station
Location: Michigan, United States, 43.48 latitude, -85.63 longitude.
Elevation: 232 m (761 ft).
Period of record: 1907 to 1974, 68 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 Newaygo Hardy Dam. 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 Newaygo Hardy Dam, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.8 C (64.0 F)
-35.0 C (-31.0 F)
n/a
n/a
Feb
16.7 C (62.1 F)
-38.3 C (-36.9 F)
n/a
n/a
Mar
27.8 C (82.0 F)
-29.4 C (-20.9 F)
n/a
n/a
Apr
30.0 C (86.0 F)
-18.9 C (-2.0 F)
n/a
n/a
May
37.2 C (99.0 F)
-8.3 C (17.1 F)
n/a
n/a
Jun
39.4 C (102.9 F)
-4.4 C (24.1 F)
n/a
n/a
Jul
43.9 C (111.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
39.4 C (102.9 F)
0.6 C (33.1 F)
n/a
n/a
Sep
37.2 C (99.0 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
30.6 C (87.1 F)
-10.0 C (14.0 F)
n/a
n/a
Nov
24.4 C (75.9 F)
-23.9 C (-11.0 F)
n/a
n/a
Dec
17.2 C (63.0 F)
-32.2 C (-26.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Newaygo Hardy Dam still stand. 1936 holds the most, with 42.
Standing records at Newaygo Hardy Dam by the year they were set
Year set
Standing records
1908
25
1909
24
1910
16
1911
28
1912
28
1913
29
1914
19
1915
22
1916
31
1917
30
1918
25
1919
14
1920
26
1921
28
1922
7
1923
17
1924
24
1925
27
1926
23
1927
19
1928
18
1929
21
1930
32
1931
25
1932
26
1933
34
1934
32
1935
20
1936
42
1937
12
1938
13
1939
16
1940
30
1941
20
1942
21
1943
32
1944
23
1945
32
1946
30
1947
27
1948
17
1949
22
1950
27
1951
33
1952
16
1953
28
1954
20
1955
18
1956
19
1957
13
1958
18
1959
20
1960
12
1961
11
1962
15
1963
18
1964
23
1965
22
1966
14
1967
16
1968
18
1969
10
1970
12
1971
15
1972
18
1973
22
1974
19
All-Time Record Progression
3 new records
3 all-time records were set at Newaygo Hardy Dam between 19 August 1939 and 11 December 1970. Each dot is a new record.
When Newaygo Hardy Dam set new all-time records
Date
Kind
Detail
1939-08-19
Record daily precipitation
Record daily precipitation 97.0 mm (3.8 in)
1942-01-07
Record low maximum temperature
Record low maximum temperature -18.3 C (-0.9 F)
1970-12-11
Record daily snowfall
Record daily snowfall 27.9 cm (11.0 in)
Wettest Day of Each Month
Aug: 97.0 mm (3.8 in)
The wettest day on record for each calendar month at Newaygo Hardy Dam. The most was 97.0 mm (3.8 in) on 19 August 1939.
Record daily precipitation for each month at Newaygo Hardy Dam
Month
Record daily precipitation (mm)
Date
Jan
41.9 mm (1.6 in)
24 January 1938
Feb
62.2 mm (2.4 in)
22 February 1922
Mar
56.9 mm (2.2 in)
17 March 1919
Apr
69.1 mm (2.7 in)
30 April 1963
May
92.7 mm (3.6 in)
27 May 1960
Jun
68.1 mm (2.7 in)
14 June 1949
Jul
82.6 mm (3.3 in)
10 July 1974
Aug
97.0 mm (3.8 in)
19 August 1939
Sep
83.3 mm (3.3 in)
21 September 1947
Oct
80.0 mm (3.1 in)
3 October 1954
Nov
58.4 mm (2.3 in)
27 November 1966
Dec
46.5 mm (1.8 in)
10 December 1971
Period of Record Coverage
1907 to 1974
Complete yearUnder 90 percent of days
68 years of record at Newaygo Hardy Dam, 1907 to 1974. 2 years have data for under 90 percent of days and are left out of rankings: 1907, 1974.
Cooler than the station meanWarmer than the station mean
One stripe for each of 65 complete years at Newaygo Hardy Dam, 1908 to 1973. Blue stripes are years cooler than the station's own mean of 7.7 C (45.9 F); red stripes are warmer. The coolest year was 1917, at 6.0 C (42.9 F), and the warmest was 1921, at 9.9 C (49.8 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Newaygo Hardy Dam as warming stripes, 1908 to 1973
Year
Annual mean temperature
Difference from the station mean
1908
9.0 C
+1.34 C
1909
8.1 C
+0.43 C
1910
8.6 C
+0.88 C
1911
9.0 C
+1.34 C
1913
9.0 C
+1.30 C
1914
8.0 C
+0.28 C
1915
7.8 C
+0.14 C
1916
7.5 C
-0.16 C
1917
6.0 C
-1.66 C
1918
8.0 C
+0.26 C
1919
8.6 C
+0.90 C
1920
7.6 C
-0.12 C
1921
9.9 C
+2.20 C
1922
8.7 C
+1.04 C
1923
7.7 C
+0.04 C
1924
6.5 C
-1.24 C
1925
7.5 C
-0.25 C
1926
6.6 C
-1.09 C
1927
8.2 C
+0.48 C
1928
7.9 C
+0.20 C
1929
6.9 C
-0.76 C
1930
8.3 C
+0.59 C
1931
9.6 C
+1.93 C
1932
7.9 C
+0.19 C
1933
8.1 C
+0.39 C
1934
7.7 C
-0.01 C
1935
7.3 C
-0.38 C
1936
7.2 C
-0.50 C
1937
7.4 C
-0.27 C
1938
8.2 C
+0.51 C
1939
7.8 C
+0.09 C
1940
6.3 C
-1.42 C
1941
8.3 C
+0.61 C
1942
7.7 C
-0.01 C
1943
6.4 C
-1.26 C
1944
7.7 C
+0.04 C
1945
7.8 C
+0.10 C
1946
8.7 C
+0.97 C
1947
7.6 C
-0.08 C
1948
7.2 C
-0.46 C
1949
8.3 C
+0.62 C
1950
6.9 C
-0.80 C
1951
7.0 C
-0.69 C
1952
8.2 C
+0.52 C
1953
8.9 C
+1.21 C
1954
8.1 C
+0.40 C
1955
8.6 C
+0.89 C
1956
7.6 C
-0.10 C
1957
7.6 C
-0.14 C
1958
7.0 C
-0.70 C
1959
7.7 C
+0.02 C
1960
7.4 C
-0.29 C
1961
7.6 C
-0.13 C
1962
7.0 C
-0.67 C
1963
6.8 C
-0.92 C
1964
7.9 C
+0.16 C
1965
7.0 C
-0.74 C
1966
6.9 C
-0.85 C
1967
6.5 C
-1.18 C
1968
7.1 C
-0.56 C
1969
7.0 C
-0.68 C
1970
7.0 C
-0.75 C
1971
7.4 C
-0.31 C
1972
6.4 C
-1.29 C
1973
8.0 C
+0.29 C
The annual mean temperature here has fallen by 0.2 C (0.1 to 0.3) per decade over 1908 to 1973. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 65 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Newaygo Hardy Dam
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.2 C (-0.3 to -0.1) per decade
-0.3 F (-0.5 to -0.1) per decade
1908 to 1973
65
Fall
Mean daily maximum
-0.01 C (-0.11 to 0.10) per decade
-0.01 F (-0.21 to 0.18) per decade
1908 to 1973
65
Not clearly different from zero
Mean daily minimum
-0.3 C (-0.4 to -0.2) per decade
-0.6 F (-0.8 to -0.4) per decade
1908 to 1973
65
Fall
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 1974
Yearly extremes at Newaygo Hardy Dam: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.9 C (111.0 F)
1936
35.3 C (95.5 F)
68
Coldest night (TNn)
-38.3 C (-36.9 F)
1918
-27.5 C (-17.5 F)
68
Wettest day (Rx1day)
97.0 mm (3.8 in)
1939
48.4 mm (1.9 in)
68
Wettest five days (Rx5day)
133.9 mm (5.3 in)
1912
78.1 mm (3.1 in)
68
Longest dry spell (CDD)
36 days
1919
19 days
68
Hottest day (TXx)
The hottest day of the year at Newaygo Hardy Dam, 1907 to 1974. The record is 43.9 C (111.0 F) in 1936, marked on the chart; the median year is 35.3 C (95.5 F).
Hottest day (TXx) at Newaygo Hardy Dam by year
Year
Hottest day (TXx)
1907
10.6 C (51.1 F)
1908
36.7 C (98.1 F)
1909
35.0 C (95.0 F)
1910
36.1 C (97.0 F)
1911
36.7 C (98.1 F)
1912
33.3 C (91.9 F)
1913
35.6 C (96.1 F)
1914
33.9 C (93.0 F)
1915
30.6 C (87.1 F)
1916
38.9 C (102.0 F)
1917
36.7 C (98.1 F)
1918
36.7 C (98.1 F)
1919
35.0 C (95.0 F)
1920
36.1 C (97.0 F)
1921
37.8 C (100.0 F)
1922
34.4 C (93.9 F)
1923
35.0 C (95.0 F)
1924
31.7 C (89.1 F)
1925
34.4 C (93.9 F)
1926
32.8 C (91.0 F)
1927
35.0 C (95.0 F)
1928
33.9 C (93.0 F)
1929
32.8 C (91.0 F)
1930
35.6 C (96.1 F)
1931
37.2 C (99.0 F)
1932
37.2 C (99.0 F)
1933
35.6 C (96.1 F)
1934
40.0 C (104.0 F)
1935
36.7 C (98.1 F)
1936
43.9 C (111.0 F)
1937
35.6 C (96.1 F)
1938
33.3 C (91.9 F)
1939
36.1 C (97.0 F)
1940
37.8 C (100.0 F)
1941
37.8 C (100.0 F)
1942
34.4 C (93.9 F)
1943
35.0 C (95.0 F)
1944
36.7 C (98.1 F)
1945
36.1 C (97.0 F)
1946
35.0 C (95.0 F)
1947
38.9 C (102.0 F)
1948
36.1 C (97.0 F)
1949
36.1 C (97.0 F)
1950
33.3 C (91.9 F)
1951
33.3 C (91.9 F)
1952
36.7 C (98.1 F)
1953
38.9 C (102.0 F)
1954
35.6 C (96.1 F)
1955
39.4 C (102.9 F)
1956
36.7 C (98.1 F)
1957
35.6 C (96.1 F)
1958
33.3 C (91.9 F)
1959
33.9 C (93.0 F)
1960
35.0 C (95.0 F)
1961
32.8 C (91.0 F)
1962
34.4 C (93.9 F)
1963
35.6 C (96.1 F)
1964
36.1 C (97.0 F)
1965
34.4 C (93.9 F)
1966
36.7 C (98.1 F)
1967
31.1 C (88.0 F)
1968
35.0 C (95.0 F)
1969
33.9 C (93.0 F)
1970
35.0 C (95.0 F)
1971
35.0 C (95.0 F)
1972
33.9 C (93.0 F)
1973
35.0 C (95.0 F)
1974
32.8 C (91.0 F)
Coldest night (TNn)
The coldest night of the year at Newaygo Hardy Dam, 1907 to 1974. The record is -38.3 C (-36.9 F) in 1918, marked on the chart; the median year is -27.5 C (-17.5 F).
Coldest night (TNn) at Newaygo Hardy Dam by year
Year
Coldest night (TNn)
1907
-12.2 C (10.0 F)
1908
-27.8 C (-18.0 F)
1909
-25.6 C (-14.1 F)
1910
-23.9 C (-11.0 F)
1911
-20.0 C (-4.0 F)
1912
-32.8 C (-27.0 F)
1913
-21.7 C (-7.1 F)
1914
-30.6 C (-23.1 F)
1915
-26.1 C (-15.0 F)
1916
-31.7 C (-25.1 F)
1917
-35.6 C (-32.1 F)
1918
-38.3 C (-36.9 F)
1919
-27.8 C (-18.0 F)
1920
-34.4 C (-29.9 F)
1921
-18.9 C (-2.0 F)
1922
-24.4 C (-11.9 F)
1923
-24.4 C (-11.9 F)
1924
-27.8 C (-18.0 F)
1925
-30.0 C (-22.0 F)
1926
-30.0 C (-22.0 F)
1927
-33.9 C (-29.0 F)
1928
-27.8 C (-18.0 F)
1929
-35.0 C (-31.0 F)
1930
-25.6 C (-14.1 F)
1931
-21.7 C (-7.1 F)
1932
-27.2 C (-17.0 F)
1933
-30.0 C (-22.0 F)
1934
-35.0 C (-31.0 F)
1935
-29.4 C (-20.9 F)
1936
-33.9 C (-29.0 F)
1937
-20.0 C (-4.0 F)
1938
-25.0 C (-13.0 F)
1939
-23.9 C (-11.0 F)
1940
-25.0 C (-13.0 F)
1941
-25.6 C (-14.1 F)
1942
-30.0 C (-22.0 F)
1943
-29.4 C (-20.9 F)
1944
-24.4 C (-11.9 F)
1945
-27.2 C (-17.0 F)
1946
-23.3 C (-9.9 F)
1947
-26.1 C (-15.0 F)
1948
-33.9 C (-29.0 F)
1949
-20.6 C (-5.1 F)
1950
-23.9 C (-11.0 F)
1951
-33.9 C (-29.0 F)
1952
-20.6 C (-5.1 F)
1953
-20.6 C (-5.1 F)
1954
-26.1 C (-15.0 F)
1955
-23.9 C (-11.0 F)
1956
-23.3 C (-9.9 F)
1957
-25.6 C (-14.1 F)
1958
-31.1 C (-24.0 F)
1959
-30.0 C (-22.0 F)
1960
-26.7 C (-16.1 F)
1961
-25.6 C (-14.1 F)
1962
-31.1 C (-24.0 F)
1963
-35.0 C (-31.0 F)
1964
-25.0 C (-13.0 F)
1965
-28.9 C (-20.0 F)
1966
-31.1 C (-24.0 F)
1967
-29.4 C (-20.9 F)
1968
-29.4 C (-20.9 F)
1969
-22.2 C (-8.0 F)
1970
-26.7 C (-16.1 F)
1971
-28.9 C (-20.0 F)
1972
-31.1 C (-24.0 F)
1973
-33.3 C (-27.9 F)
1974
-28.9 C (-20.0 F)
Wettest day (Rx1day)
The wettest day of the year at Newaygo Hardy Dam, 1907 to 1974. The record is 97.0 mm (3.8 in) in 1939, marked on the chart; the median year is 48.4 mm (1.9 in).
Wettest day (Rx1day) at Newaygo Hardy Dam by year
Year
Wettest day (Rx1day)
1907
28.2 mm (1.1 in)
1908
49.3 mm (1.9 in)
1909
66.0 mm (2.6 in)
1910
31.8 mm (1.3 in)
1911
44.7 mm (1.8 in)
1912
61.0 mm (2.4 in)
1913
55.9 mm (2.2 in)
1914
64.3 mm (2.5 in)
1915
40.6 mm (1.6 in)
1916
35.6 mm (1.4 in)
1917
30.5 mm (1.2 in)
1918
55.4 mm (2.2 in)
1919
56.9 mm (2.2 in)
1920
58.9 mm (2.3 in)
1921
66.3 mm (2.6 in)
1922
62.2 mm (2.4 in)
1923
48.8 mm (1.9 in)
1924
53.3 mm (2.1 in)
1925
39.6 mm (1.6 in)
1926
47.0 mm (1.9 in)
1927
41.1 mm (1.6 in)
1928
43.2 mm (1.7 in)
1929
48.3 mm (1.9 in)
1930
30.5 mm (1.2 in)
1931
54.6 mm (2.1 in)
1932
33.8 mm (1.3 in)
1933
43.4 mm (1.7 in)
1934
51.3 mm (2.0 in)
1935
31.0 mm (1.2 in)
1936
36.1 mm (1.4 in)
1937
64.0 mm (2.5 in)
1938
55.1 mm (2.2 in)
1939
97.0 mm (3.8 in)
1940
63.2 mm (2.5 in)
1941
68.3 mm (2.7 in)
1942
38.1 mm (1.5 in)
1943
33.5 mm (1.3 in)
1944
31.2 mm (1.2 in)
1945
46.2 mm (1.8 in)
1946
30.7 mm (1.2 in)
1947
83.3 mm (3.3 in)
1948
33.8 mm (1.3 in)
1949
68.1 mm (2.7 in)
1950
43.7 mm (1.7 in)
1951
54.4 mm (2.1 in)
1952
60.2 mm (2.4 in)
1953
35.8 mm (1.4 in)
1954
80.0 mm (3.1 in)
1955
76.2 mm (3.0 in)
1956
36.3 mm (1.4 in)
1957
42.2 mm (1.7 in)
1958
29.2 mm (1.1 in)
1959
78.2 mm (3.1 in)
1960
92.7 mm (3.6 in)
1961
56.9 mm (2.2 in)
1962
32.0 mm (1.3 in)
1963
69.1 mm (2.7 in)
1964
30.5 mm (1.2 in)
1965
42.4 mm (1.7 in)
1966
58.4 mm (2.3 in)
1967
49.0 mm (1.9 in)
1968
29.2 mm (1.1 in)
1969
48.5 mm (1.9 in)
1970
33.0 mm (1.3 in)
1971
46.5 mm (1.8 in)
1972
58.4 mm (2.3 in)
1973
48.3 mm (1.9 in)
1974
82.6 mm (3.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Newaygo Hardy Dam, 1907 to 1974. The record is 133.9 mm (5.3 in) in 1912, marked on the chart; the median year is 78.1 mm (3.1 in).
Wettest five days (Rx5day) at Newaygo Hardy Dam by year
Year
Wettest five days (Rx5day)
1907
20.8 mm (0.8 in)
1908
69.9 mm (2.8 in)
1909
129.3 mm (5.1 in)
1910
50.8 mm (2.0 in)
1911
83.3 mm (3.3 in)
1912
133.9 mm (5.3 in)
1913
109.2 mm (4.3 in)
1914
73.0 mm (2.9 in)
1915
84.2 mm (3.3 in)
1916
58.9 mm (2.3 in)
1917
62.2 mm (2.4 in)
1918
90.9 mm (3.6 in)
1919
89.2 mm (3.5 in)
1920
63.2 mm (2.5 in)
1921
82.8 mm (3.3 in)
1922
91.4 mm (3.6 in)
1923
79.5 mm (3.1 in)
1924
76.7 mm (3.0 in)
1925
43.4 mm (1.7 in)
1926
69.4 mm (2.7 in)
1927
67.1 mm (2.6 in)
1928
55.6 mm (2.2 in)
1929
65.2 mm (2.6 in)
1930
43.7 mm (1.7 in)
1931
88.9 mm (3.5 in)
1932
83.1 mm (3.3 in)
1933
55.6 mm (2.2 in)
1934
95.8 mm (3.8 in)
1935
51.4 mm (2.0 in)
1936
83.2 mm (3.3 in)
1937
98.0 mm (3.9 in)
1938
80.7 mm (3.2 in)
1939
110.0 mm (4.3 in)
1940
83.0 mm (3.3 in)
1941
112.0 mm (4.4 in)
1942
52.9 mm (2.1 in)
1943
53.9 mm (2.1 in)
1944
47.2 mm (1.9 in)
1945
91.4 mm (3.6 in)
1946
43.4 mm (1.7 in)
1947
83.6 mm (3.3 in)
1948
62.8 mm (2.5 in)
1949
100.0 mm (3.9 in)
1950
54.1 mm (2.1 in)
1951
67.3 mm (2.6 in)
1952
100.4 mm (4.0 in)
1953
56.1 mm (2.2 in)
1954
107.6 mm (4.2 in)
1955
120.6 mm (4.7 in)
1956
94.9 mm (3.7 in)
1957
62.3 mm (2.5 in)
1958
37.3 mm (1.5 in)
1959
93.5 mm (3.7 in)
1960
96.7 mm (3.8 in)
1961
72.9 mm (2.9 in)
1962
49.8 mm (2.0 in)
1963
79.5 mm (3.1 in)
1964
55.1 mm (2.2 in)
1965
59.2 mm (2.3 in)
1966
85.1 mm (3.4 in)
1967
101.4 mm (4.0 in)
1968
48.9 mm (1.9 in)
1969
103.8 mm (4.1 in)
1970
65.8 mm (2.6 in)
1971
60.0 mm (2.4 in)
1972
84.3 mm (3.3 in)
1973
62.5 mm (2.5 in)
1974
108.2 mm (4.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Newaygo Hardy Dam, 1907 to 1974. The record is 36 days in 1919, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Newaygo Hardy Dam by year
Year
Longest dry spell (CDD)
1907
6 days
1908
26 days
1909
21 days
1910
32 days
1911
19 days
1912
16 days
1913
13 days
1914
27 days
1915
20 days
1916
31 days
1917
21 days
1918
23 days
1919
36 days
1920
17 days
1921
15 days
1922
17 days
1923
21 days
1924
18 days
1925
17 days
1926
21 days
1927
30 days
1928
18 days
1929
22 days
1930
19 days
1931
27 days
1932
21 days
1933
22 days
1934
19 days
1935
16 days
1936
23 days
1937
16 days
1938
24 days
1939
20 days
1940
24 days
1941
15 days
1942
18 days
1943
25 days
1944
28 days
1945
21 days
1946
18 days
1947
19 days
1948
15 days
1949
16 days
1950
14 days
1951
14 days
1952
20 days
1953
22 days
1954
19 days
1955
18 days
1956
15 days
1957
21 days
1958
30 days
1959
27 days
1960
15 days
1961
14 days
1962
13 days
1963
18 days
1964
14 days
1965
14 days
1966
16 days
1967
21 days
1968
24 days
1969
19 days
1970
15 days
1971
14 days
1972
17 days
1973
13 days
1974
14 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
65 years with a frost
Across 65 years with a frost, the median last spring frost at Newaygo Hardy Dam falls on 21 May and the median first autumn frost on 27 September, which leaves a median of 129 days between them.
In 1944 to 1973 the median growing season was 118 days. That is 21 days fewer than in 1908 to 1938.
Fitted over all years, the growing season changes by -5.5 days per decade at this station.
Frost dates and growing season at Newaygo Hardy Dam
Measure
Median, all years
Earliest period (1908 to 1938)
Recent period (1944 to 1973)
Recent against earliest
Fitted trend
Last spring frost
21 May
18 May
25 May
7 days later
+2.5 days per decade
First autumn frost
27 September
2 October
23 September
9 days earlier
-3.1 days per decade
Growing days
129 days
139 days
118 days
21 days fewer
-5.5 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
65 years, 1908 to 1973
A day with at least 47.6 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 101.8 mm (4.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Newaygo Hardy Dam: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
47.6 mm (1.9 in)
5 years
62.4 mm (2.5 in)
10 years
72.1 mm (2.8 in)
25 years
84.2 mm (3.3 in)
50 years
93.0 mm (3.7 in)
100 years
101.8 mm (4.0 in)
Longer than the 65 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, 65 years of values from 1908 to 1973.
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: 97.0 mm (3.8 in) in 1939; 92.7 mm (3.6 in) in 1960; 83.3 mm (3.3 in) in 1947.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Newaygo Hardy Dam standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Newaygo Hardy Dam 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.