$\begin{array}{|l|c|}
\hline \text { MONTH } & \begin{array}{c}
\text { MONTHLY } \
\text { MEAN TEMP. }
\end{array} \\hline \text { January } & 28.4^{\circ} \mathrm{F} \
\hline \text { February } & 29.9^{\circ} \mathrm{F} \
\hline \text { March } & 36.9^{\circ} \mathrm{F} \
\hline \text { April } & 42.9^{\circ} \mathrm{F} \
\hline \text { May } & 46.8^{\circ} \mathrm{F} \
\hline \text { June } & 58.2^{\circ} \mathrm{F} \
\hline \text { July } & 66.1^{\circ} \mathrm{F} \
\hline \text { August } & 65.2^{\circ} \mathrm{F} \
\hline \text { September } & 57.6^{\circ} \mathrm{F} \
\hline \text { October } & 49.1^{\circ} \mathrm{F} \
\hline \text { November } & 32.5^{\circ} \mathrm{F} \
\hline \text { December } & 27.5^{\circ} \mathrm{F} \
\hline
\end{array}$
$2010 \text { Monthly Mean Temperatures for the state of Idaho. Source: NOAA's NCDC Climate at a Glance }$
-Refer to the chart above of 2010 monthly mean temperatures for the state of Idaho. Based on this data, what was the annual mean temperature for Idaho in 2010?
A) 45.1°F
B) 47.25°F
C) 38.6°F
D) 46.8°F

Question

Quizplus · Accepted Answer

To find the annual mean temperature, add all the monthly mean temperatures together and divide by 12. The sum of all the monthly mean temperatures is 541.2°F. Dividing this by 12 months gives an annual mean temperature of 45.1°F.

2010 Monthly Mean Temperatures for the state of Idaho. Source: NOAA’s NCDC Climate at a Glance 2010 \text { Monthly Mean Temperatures for the state of Idaho. Source: NOAA's NCDC Climate at a Glance }2010 Monthly Mean Temperatures for the state of Idaho. Source: NOAA’s NCDC Climate at a Glance

$2010 \text { Monthly Mean Temperatures for the state of Idaho. Source: NOAA's NCDC Climate at a Glance }$