are referred to as Prudhoe (Mukluk) in this 
report; the location is about 8 km inland from 
Prudhoe Bay itself. 
(2) Prudhoe Airfield Tower: These data have 
been acquired by the Atlantic Richfield Com- 
pany since 1967, and observations have been 
essentially continuous since 1968. These data 
are not reported in the National Weather Serv- 
ice’s Alaska Climatic Data Summaries, although 
they are available from the National Climatic 
Center. In general, these data appear to be 
adequate for most purposes and probably com- 
pose the best record available by virtue of its 
length. A comparison of Prudhoe Tower data 
with data from Mukluk Camp is presented in 
Table 1 for 1970-1973. Averaged over this 4- 
year period, there is a difference of only 0.8°C 
in mean annual temperature for the two stations 
with Mukluk Camp being slightly colder. This 
difference could be actual. 
(3) Deadhorse Airfield: Data are hourly dur- 
ing the period of airfield operation, but are 
usually missing early morning observations. 
(4) Happy Valley Camp: This station is 
operated by Alyeska and has been reported to 
the National Climatic Center since 1970. It is 
also now listed in the Alaska Climatic Summary 
(National Weather Service), but data are often 
missing. This has been the only station recently 
in regular operation that is representative of the 
interior portion of the North Slope. 
Comparison of Prudhoe Bay air temperatures (°C). 
Table 1 
Mukluk Camp Prudhoe Tower Mukluk Camp Prudhoe Tower 
Max Min Mean Max Min Mean Max Min Mean Max Min Mean 
1970 1971 
Jan -24.7 -30.5 -27.6 -28.5 -37.3 -32.9 -27.4 -36.8 -32.1 
Feb -25.8 -32.2 -29.0 -24.7 -31.9 -28.3 -33.8 -40.3 -37.1 -33.5 -40.1 -36.8 
Mar -25.9 -32.5 -29.2 -25.5 -32.4 -29.0 -25.7 -33.7 -29.7 -24.9 -32.6 -28.7 
Apr -15.1 -22.1 -18.6 -15.2 -21.9 -18.6 -16.6 -26.8 -21.7 -17.3 -26.8 -21.7 
May -4.7 -9.8 =i -3.2 -9.6 -6.4 -3.9 -9.8 -6.8 -3.7 -9.6 -6.7 
June 5.0 -0.9 24 5.2 -0.4 Pees 7.4 0.7 4.1 74 1.4 44 
July Cy 1.6 5.4 8.4 2.0 5.2 113 3.1 Te iS 3.9 ZA. 
Aug 7.9 1.8 48 7.8 ZS 5A 5.8 -0.5 2f 6.1 0.6 as 
Sept 0.4 -5.4 -2.5 -0.1 49 -2.5 Tok -2.7 -0.5 2.3 -1.6 0.5 
Oct -13.9 -20.5 -17.2 -14.7 -20.2 -17.4 -9.4 -17.9 -13.6 -8.0 -15.9 -11.9 
Nov -15.4 -23.6 -19.5 -15.2 -23.7 -19.4 -17.2 -24.2 -20.7 -16.7 -23.2 -19.9 
Dec -23.6 -31.5 -27.6 -22.7 -30.5 -26.6 -25.6 -31.4 -28.4 -25.7 -29.4 -27.6 
Annual 
means -10.4 -16.8 -13.6 -11.2 -18.4 -14.8 -10.8 -17.5 -14.2 
1972 1973 
Jan -26.3 -32.6 -29.4 -26.4 -31.2 -28.8 -22.6 -31.3 -26.9 -24.4 -29.1 -26.7 
Feb -29.2 -32.6 -32.2 -29.1 -34.8 -31.9 -25.1 -32.3 -28.7 -25.3 -30.3 -27.8 
Mar -28.3 -34.7 -31.5 -28.2 -34.1 -31.1 -29.9 -37.4 -33.7 -29.5 -35.9 -32.7 
Apr -16.7 -26.3 -21.5 -15.7 -24.3 -20.1 -13.7 -24.4 -19.1 -13.8 -22.3 -18.0 
May -3.9 -10.7 -7.3 -2.9 -8.6 -5.8 -2.5 -8.4 -5.4 -2.2 -7.1 -47 
June 4.7 -0.3 2:2 4.6 0.9 21 4.5 -0.1 22 4.3 0.9 2.6 
July 10.6 ZA 6.3 10.1 4.0 ZA ATA 2.4 6.8 11.2 4.8 8.0 
Aug 9.2 2.3 5. 9.4 3.6 6.5 9.8 3.1 6.4 9.7 4.6 V2 
Sept 0.4 -3.9 -1.8 0.9 -1.2 -0.7 4.5 -1.2 tier 4.8 0.4 2.6 
Oct -4.6 -12.6 -8.6 4.8 -9.8 7.3 -7.2 -13.7 -10.4 -7.1 -11.1 -9.1 
Nov -15.9 -20.9 -18.4 -15.7 -19.3 -17.6 -14.3 -20.6 -17.4 -15.3 -18.8 -17.1 
Dec -19.0 -26.4 -22.7 -19.8 -24.6 -22.0 -19.3 -25.9 -22.6 -19.9 -23.8 -21.9 
Annual 
means -9.9 -16.7 -13.3 -9.8 -15.1 -12.4 -8.7 -15.8 -12.3 -8.9 -14.0 -11.4 
