Thursday, August 14, 2025

Historic Mid-August Heatwave - Northern Maine Data

...HEAT WAVE FOR NORTHERN MAINE AUGUST 10TH THROUGH AUGUST 13TH...

Several high temperature records were broken in Northern Maine this 
week.

In Caribou, the high temperature exceeded 90 degrees for four 
consecutive days (August 10th-August 13th). This ties the longest 
streak of days reaching or exceeding 90 degrees on record for 
Caribou. the other stretches were August 29th-September 1st, 2010, 
July 25th-July 28th, 1969, and June 15th-June 18th, 1949. 

This four-day stretch was the warmest on record for Caribou 
in terms of average temperature (highs and lows). The average 
temperature for August 10th-August 13th was 79.0 degrees. This 
topped the old record of 78.9 degrees, which occurred July 26th-July 
29th, 1963.

In addition, Caribou recorded high temperatures of 94 degrees 
for three straight days (August 11th-August 13th). This 
ties the record streak, previously set on May 22nd-May 24th, 
1977. 

The high temperatures for August 11th through the 13th were also 
daily records for Caribou. The old daily records were 92 degrees 
(2020), 93 degrees (1944), and 92 degrees (2021), respectively. 
Records in Caribou date back to 1939.

In Houlton, the high temperature exceeded 90 degrees for four 
consecutive days (August 10th-August 13th). This was the third 
longest streak of days reaching or exceeding 90 degrees on record 
for Houlton. The two longer streaks lasted 8 days (July 23rd-July 
30th, 1970) and 6 days (June 13th-June 18th, 1949). In addition, the 
temperature reached 94 degrees on both August 11th and August 12th. 
This was the fourth time the high reached at least 94 degrees on 
back-to-back days in Houlton. The other occurrences were June 20th-
June 21st, 2020, July 19th-July 20th, 1991, August 1st-August 22nd,
1975, and July 10th-July 11th, 1955.

The high temperatures on August 11th (94 degrees), 12th (94 
degrees), and 13th (93 degrees) set new daily records in Houlton. 
The old daily records were 91 degrees (2020), 91 degrees (2021), 
and 91 degrees (2021), respectively. Records in Houlton date 
back to 1948.

In Millinocket, the high temperature exceeded 90 degrees for four 
consecutive days (August 10th-August 13th). However, this was not
in the top-10 longest streaks of days at or above 90 degrees on 
record in Millinocket. That said, the temperature reached or 
exceeded 95 degrees for three straight days (August 11th-August 
13th). This was the second longest stretch on record in 
Millinocket, and the longest in more than 100 years. The longest 
streak of days at or above 95 degrees on record is 6 days (July 
6th-July 11th, 1912).

The high temperatures on August 11th (97 degrees), 12th (96 
degrees), and 13th (95 degrees) set new daily records in 
Millinocket. The old daily records were 96 degrees (1944), 94 
degrees (1944), and 95 degrees (2002), respectively. Records in 
Millinocket date back to 1903.

No high temperature records were set in Bangor this week. Records in 
Bangor date back to 1925.

$$

NC/AB

New Daily Maximum Temperature Records Set In New Brunswick & Nova Scotia - 08/13/2025

Weather summary
for New Brunswick
issued by Environment Canada
at 4:55 a.m. ADT Thursday 14 August 2025.

Discussion.

The following areas set a daily maximum temperature record on August 
13, 2025 (temperature values given in degrees Celsius): 

BATHURST AREA (Bathurst A) 
New record of 34.7 
Old record of 33.5 set in 1991 
Records in this area have been kept since 1872 

DOAKTOWN AREA (Doaktown Auto RCS) 
New record of 35.8 
Old record of 33.0 set in 2021 
Records in this area have been kept since 1952 

EDMUNDSTON AREA (Edmundston) 
New record of 34.9 
Old record of 33.9 set in 2021 
Records in this area have been kept since 1918 

FUNDY (NATIONAL PARK) AREA (Fundy Park (Alma) CS) 
New record of 29.6 
Old record of 28.3 set in 1974 
Records in this area have been kept since 1950 

MIRAMICHI AREA (Miramichi RCS) 
New record of 36.3 
Old record of 34.4 set in 1876 
Records in this area have been kept since 1873 

Note: the temperature records reported here have been derived from a 
selection of historical stations in each geographic area that were 
active during the period of record.

Please note that this summary may contain preliminary or unofficial 
information and does not constitute a complete or final report.

End/ASPC


Weather summary
for Nova Scotia
issued by Environment Canada
at 4:57 a.m. ADT Thursday 14 August 2025.

Discussion.

The following area set a daily maximum temperature record on August 
13, 2025 (temperature values given in degrees Celsius): 

CHETICAMP AREA (Cheticamp Highlands National Park) 
New record of 30.4 
Old record of 29.4 set in 2021 
Records in this area have been kept since 1956 

Note: the temperature record reported here has been derived from a 
selection of historical stations in this geographic area that were 
active during the period of record.

Please note that this summary may contain preliminary or unofficial 
information and does not constitute a complete or final report.

End/ASPC