Record envelope, standing records and threshold days for Arvada 3 N (USC00480380), Wyoming, United States, with 42 years of record.
Key Facts for Arvada 3 N
Arvada 3 N (USC00480380) is a weather station in Wyoming, United States at 44.70 latitude and -106.10 longitude, 1,122 m (3,681 ft) above sea level.
The station reports from 1936 to 1977, 42 years of record.
1,464 records set at Arvada 3 N still stand.
Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
Arvada 3 N set a daily record snowfall of 7.6 cm (3.0 in) on 28 January 1977.
About the Station
Location: Wyoming, United States, 44.70 latitude, -106.10 longitude.
Elevation: 1,122 m (3,681 ft).
Period of record: 1936 to 1977, 42 years.
Eligible elements: 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 Arvada 3 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 Arvada 3 N, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.0 C (59.0 F)
-41.1 C (-42.0 F)
n/a
n/a
Feb
20.0 C (68.0 F)
-37.2 C (-35.0 F)
n/a
n/a
Mar
25.6 C (78.1 F)
-27.8 C (-18.0 F)
n/a
n/a
Apr
31.1 C (88.0 F)
-17.2 C (1.0 F)
n/a
n/a
May
36.7 C (98.1 F)
-10.0 C (14.0 F)
n/a
n/a
Jun
40.6 C (105.1 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
42.8 C (109.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
42.8 C (109.0 F)
-0.6 C (30.9 F)
n/a
n/a
Sep
38.9 C (102.0 F)
-7.8 C (18.0 F)
n/a
n/a
Oct
35.6 C (96.1 F)
-18.9 C (-2.0 F)
n/a
n/a
Nov
23.3 C (73.9 F)
-35.6 C (-32.1 F)
n/a
n/a
Dec
22.2 C (72.0 F)
-36.7 C (-34.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Arvada 3 N still stand. 1950 holds the most, with 79.
Standing records at Arvada 3 N by the year they were set
Year set
Standing records
1937
54
1938
51
1939
60
1940
46
1948
20
1949
61
1950
79
1951
67
1952
54
1953
55
1954
63
1955
49
1956
52
1957
46
1958
57
1959
55
1960
56
1961
39
1962
36
1963
49
1964
37
1965
44
1966
55
1967
35
1968
36
1969
54
1970
30
1971
39
1972
37
1973
6
1974
37
1975
3
1977
2
Wettest Day of Each Month
Jun: 66.8 mm (2.6 in)
The wettest day on record for each calendar month at Arvada 3 N. The most was 66.8 mm (2.6 in) on 15 June 1965.
Record daily precipitation for each month at Arvada 3 N
Month
Record daily precipitation (mm)
Date
Jan
16.8 mm (0.7 in)
31 January 1971
Feb
22.9 mm (0.9 in)
10 February 1967
Mar
19.1 mm (0.8 in)
2 March 1967
Apr
48.3 mm (1.9 in)
30 April 1967
May
49.0 mm (1.9 in)
30 May 1971
Jun
66.8 mm (2.6 in)
15 June 1965
Jul
65.0 mm (2.6 in)
29 July 1953
Aug
35.6 mm (1.4 in)
10 August 1968
Sep
25.9 mm (1.0 in)
30 September 1940
Oct
35.3 mm (1.4 in)
31 October 1974
Nov
26.7 mm (1.1 in)
14 November 1964
Dec
14.0 mm (0.6 in)
17 December 1968
Period of Record Coverage
1937 to 1977
Complete yearUnder 90 percent of days
33 years of record at Arvada 3 N, 1937 to 1977. 7 years have data for under 90 percent of days and are left out of rankings: 1948, 1971, 1972, 1973, 1974, 1975, 1977.
Cooler than the station meanWarmer than the station mean
One stripe for each of 23 complete years at Arvada 3 N, 1938 to 1970. Blue stripes are years cooler than the station's own mean of 7.6 C (45.7 F); red stripes are warmer. The coolest year was 1951, at 5.6 C (42.1 F), and the warmest was 1963, at 9.0 C (48.1 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Arvada 3 N as warming stripes, 1938 to 1970
Year
Annual mean temperature
Difference from the station mean
1938
8.2 C
+0.63 C
1939
8.3 C
+0.65 C
1940
7.9 C
+0.33 C
1949
7.0 C
-0.62 C
1951
5.6 C
-2.00 C
1952
7.5 C
-0.11 C
1953
8.2 C
+0.62 C
1954
8.5 C
+0.87 C
1955
6.8 C
-0.83 C
1956
7.2 C
-0.45 C
1957
7.6 C
-0.05 C
1958
8.2 C
+0.56 C
1959
6.7 C
-0.86 C
1960
8.3 C
+0.70 C
1961
8.1 C
+0.46 C
1962
8.1 C
+0.54 C
1963
9.0 C
+1.35 C
1964
7.4 C
-0.21 C
1965
7.1 C
-0.50 C
1967
8.0 C
+0.43 C
1968
7.1 C
-0.47 C
1969
7.1 C
-0.55 C
1970
7.1 C
-0.51 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1936 to 1977
Yearly extremes at Arvada 3 N: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.8 C (109.0 F)
1937
40.6 C (105.1 F)
33
Coldest night (TNn)
-41.1 C (-42.0 F)
1963
-32.8 C (-27.0 F)
33
Wettest day (Rx1day)
66.8 mm (2.6 in)
1965
25.9 mm (1.0 in)
33
Wettest five days (Rx5day)
76.7 mm (3.0 in)
1953
38.9 mm (1.5 in)
33
Longest dry spell (CDD)
56 days
1939
34 days
33
Hottest day (TXx)
The hottest day of the year at Arvada 3 N, 1936 to 1977. The record is 42.8 C (109.0 F) in 1937, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at Arvada 3 N by year
Year
Hottest day (TXx)
1936
n/a
1937
42.8 C (109.0 F)
1938
40.6 C (105.1 F)
1939
42.8 C (109.0 F)
1940
41.7 C (107.1 F)
1948
40.0 C (104.0 F)
1949
42.8 C (109.0 F)
1950
37.8 C (100.0 F)
1951
38.3 C (100.9 F)
1952
41.1 C (106.0 F)
1953
38.3 C (100.9 F)
1954
40.6 C (105.1 F)
1955
37.8 C (100.0 F)
1956
39.4 C (102.9 F)
1957
41.1 C (106.0 F)
1958
39.4 C (102.9 F)
1959
42.2 C (108.0 F)
1960
41.1 C (106.0 F)
1961
40.6 C (105.1 F)
1962
37.8 C (100.0 F)
1963
39.4 C (102.9 F)
1964
41.1 C (106.0 F)
1965
40.6 C (105.1 F)
1966
42.2 C (108.0 F)
1967
37.8 C (100.0 F)
1968
37.8 C (100.0 F)
1969
40.0 C (104.0 F)
1970
41.1 C (106.0 F)
1971
40.6 C (105.1 F)
1972
41.7 C (107.1 F)
1973
16.7 C (62.1 F)
1974
38.9 C (102.0 F)
1975
11.1 C (52.0 F)
1977
10.0 C (50.0 F)
Coldest night (TNn)
The coldest night of the year at Arvada 3 N, 1936 to 1977. The record is -41.1 C (-42.0 F) in 1963, marked on the chart; the median year is -32.8 C (-27.0 F).
Coldest night (TNn) at Arvada 3 N by year
Year
Coldest night (TNn)
1936
n/a
1937
-31.1 C (-24.0 F)
1938
-31.7 C (-25.1 F)
1939
-37.2 C (-35.0 F)
1940
-36.1 C (-33.0 F)
1948
-28.9 C (-20.0 F)
1949
-40.0 C (-40.0 F)
1950
-32.8 C (-27.0 F)
1951
-37.8 C (-36.0 F)
1952
-32.2 C (-26.0 F)
1953
-23.9 C (-11.0 F)
1954
-34.4 C (-29.9 F)
1955
-28.3 C (-18.9 F)
1956
-36.1 C (-33.0 F)
1957
-32.8 C (-27.0 F)
1958
-25.0 C (-13.0 F)
1959
-35.6 C (-32.1 F)
1960
-33.9 C (-29.0 F)
1961
-28.9 C (-20.0 F)
1962
-35.6 C (-32.1 F)
1963
-41.1 C (-42.0 F)
1964
-36.7 C (-34.1 F)
1965
-27.8 C (-18.0 F)
1966
-29.4 C (-20.9 F)
1967
-32.2 C (-26.0 F)
1968
-37.8 C (-36.0 F)
1969
-35.0 C (-31.0 F)
1970
-32.2 C (-26.0 F)
1971
-36.1 C (-33.0 F)
1972
-33.3 C (-27.9 F)
1973
-19.4 C (-2.9 F)
1974
-20.0 C (-4.0 F)
1975
-31.1 C (-24.0 F)
1977
-30.0 C (-22.0 F)
Wettest day (Rx1day)
The wettest day of the year at Arvada 3 N, 1936 to 1977. The record is 66.8 mm (2.6 in) in 1965, marked on the chart; the median year is 25.9 mm (1.0 in).
Wettest day (Rx1day) at Arvada 3 N by year
Year
Wettest day (Rx1day)
1936
25.7 mm (1.0 in)
1937
37.3 mm (1.5 in)
1938
28.4 mm (1.1 in)
1939
22.6 mm (0.9 in)
1940
25.9 mm (1.0 in)
1948
13.2 mm (0.5 in)
1949
31.2 mm (1.2 in)
1950
31.8 mm (1.3 in)
1951
22.1 mm (0.9 in)
1952
25.4 mm (1.0 in)
1953
65.0 mm (2.6 in)
1954
25.1 mm (1.0 in)
1955
18.0 mm (0.7 in)
1956
23.4 mm (0.9 in)
1957
18.3 mm (0.7 in)
1958
35.8 mm (1.4 in)
1959
15.5 mm (0.6 in)
1960
22.4 mm (0.9 in)
1961
16.0 mm (0.6 in)
1962
50.0 mm (2.0 in)
1963
58.9 mm (2.3 in)
1964
32.8 mm (1.3 in)
1965
66.8 mm (2.6 in)
1966
14.7 mm (0.6 in)
1967
48.3 mm (1.9 in)
1968
35.6 mm (1.4 in)
1969
33.5 mm (1.3 in)
1970
30.7 mm (1.2 in)
1971
49.0 mm (1.9 in)
1972
17.0 mm (0.7 in)
1973
14.0 mm (0.6 in)
1974
35.3 mm (1.4 in)
1975
n/a
1977
7.6 mm (0.30 in)
Wettest five days (Rx5day)
The wettest five days of the year at Arvada 3 N, 1936 to 1977. The record is 76.7 mm (3.0 in) in 1953, marked on the chart; the median year is 38.9 mm (1.5 in).
Wettest five days (Rx5day) at Arvada 3 N by year
Year
Wettest five days (Rx5day)
1936
26.0 mm (1.0 in)
1937
57.6 mm (2.3 in)
1938
59.9 mm (2.4 in)
1939
29.7 mm (1.2 in)
1940
59.8 mm (2.4 in)
1948
21.3 mm (0.8 in)
1949
32.5 mm (1.3 in)
1950
49.3 mm (1.9 in)
1951
36.3 mm (1.4 in)
1952
39.9 mm (1.6 in)
1953
76.7 mm (3.0 in)
1954
38.9 mm (1.5 in)
1955
31.7 mm (1.2 in)
1956
26.7 mm (1.1 in)
1957
30.2 mm (1.2 in)
1958
35.8 mm (1.4 in)
1959
29.7 mm (1.2 in)
1960
32.8 mm (1.3 in)
1961
31.2 mm (1.2 in)
1962
64.0 mm (2.5 in)
1963
68.3 mm (2.7 in)
1964
68.1 mm (2.7 in)
1965
74.9 mm (2.9 in)
1966
22.1 mm (0.9 in)
1967
50.1 mm (2.0 in)
1968
54.5 mm (2.1 in)
1969
68.0 mm (2.7 in)
1970
41.1 mm (1.6 in)
1971
52.0 mm (2.0 in)
1972
40.9 mm (1.6 in)
1973
18.6 mm (0.7 in)
1974
35.3 mm (1.4 in)
1975
n/a
1977
20.5 mm (0.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Arvada 3 N, 1936 to 1977. The record is 56 days in 1939, marked on the chart; the median year is 34 days.
Longest dry spell (CDD) at Arvada 3 N by year
Year
Longest dry spell (CDD)
1936
32 days
1937
40 days
1938
37 days
1939
56 days
1940
26 days
1948
42 days
1949
29 days
1950
35 days
1951
30 days
1952
45 days
1953
34 days
1954
26 days
1955
33 days
1956
26 days
1957
38 days
1958
37 days
1959
34 days
1960
39 days
1961
32 days
1962
38 days
1963
38 days
1964
43 days
1965
49 days
1966
28 days
1967
35 days
1968
27 days
1969
47 days
1970
41 days
1971
31 days
1972
32 days
1973
27 days
1974
25 days
1975
n/a
1977
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.
Frost Dates and Growing Season
23 years with a frost
Across 23 years with a frost, the median last spring frost at Arvada 3 N falls on 19 May and the median first autumn frost on 15 September, which leaves a median of 125 days between them.
Frost dates and growing season at Arvada 3 N
Measure
Median, all years
Earliest period
Recent period (1938 to 1970)
Recent against earliest
Fitted trend
Last spring frost
19 May
n/a
19 May
n/a
n/a
First autumn frost
15 September
n/a
15 September
n/a
n/a
Growing days
125 days
n/a
125 days
n/a
n/a
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.
Download the Data
Data for Arvada 3 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Arvada 3 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.