sitka_highs.py

import csv
from datetime import datetime

import matplotlib.pyplot as plt

filename = 'data/sitka_weather_2018_simple.csv'
with open(filename) as f:
    reader = csv.reader(f)
    header_row = next(reader)
    print(header_row)

    # Get date, and high, and low temperatures form this file.
    dates, highs, lows = [], [], []
    for row in reader:
        current_date = datetime.strptime(row[2], '%Y-%m-%d')
        high = int(row[5])
        low = int(row[6])
        dates.append(current_date)
        highs.append(high)
        lows.append(low)

    # Plot the high and low temperatures.
    plt.style.use('seaborn')
    fig, ax = plt.subplots()
    ax.plot(dates, highs, c='red')
    ax.plot(dates, lows, c='blue')

    # Format plot.
    ax.set_title("Daily high, and low temperatures - 2018", fontsize=24)
    ax.set_xlabel('', fontsize=16)
    fig.autofmt_xdate()
    ax.set_ylabel("Rainfall between Sitka, to Death Valley", fontsize=16)
    ax.tick_params(axis='both', which='major', labelsize=16)

    plt.show()