import re
 
text = '''Latitude (degrees): 4010.44 Longitude (degrees): 58.000 Radiation database: year month H(h)_m 2005 Jan 57.77 2005 Feb 77.76 2005 Mar 120.58 H(h)_m: Irradiation plane (kWh/m2/mo)'''
 
for match in re.finditer(r'(?P<key>\b[A-Z][ a-z_()]*): *(?P<value>.+?)(?=\b[A-Z][ a-z_()]*:|$)', text):
    # Key is the short pattern before ":" starting with a uppercase letter
    # Value must be the remaining, after the ": " and before the next key.
    print(match.group("key"), ":", match.group("value"))

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